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Russia says it won’t start a war as Ukraine tensions mount

An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) President Joe Biden speaks to reporters as he arrives at Andrews Air Force Base, Md., Friday, Jan. 28, 2022. (AP Photo/Andrew Harnik) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Secretary of Defense Lloyd Austin turns to Joint Chiefs Chairman Gen. Mark Milley as he speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) Secretary of Defense Lloyd Austin and Joint Chiefs Chairman Gen. Mark Milley speak during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Secretary of Defense Lloyd Austin speaks during a media briefing at the Pentagon, Friday, Jan. 28, 2022, in Washington. (AP Photo/Alex Brandon) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) An Ukrainian serviceman looks around as he leaves a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this handout photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks during a news conference in Kyiv, Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (Ukrainian Presidential Press Office via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A Ukrainian serviceman pats a dog sitting in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, a Russian howitzer fires during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) In this photo taken from video provided by the Russian Defense Ministry Press Service on Friday, Jan. 28, 2022, Russian troops fire howitzers during drills in the Rostov region during a military exercising at a training ground in Rostov region, Russia. (Russian Defense Ministry Press Service via AP) Olga, one of the 16 residents still living in a frontline village, holds a rabbit speaking to journalists at her house's yard not far from the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A Ukrainian soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Ukrainian soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - A soldier takes part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) CORRECTS THAT NLAW ARE ANTI-TANK AND NOT ANTI-AIRCRAFT MISSILES - Soldiers take part in an exercise for the use of NLAW anti-tank missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A soldier takes part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A soldier takes part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A soldier takes part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Lithuania's Minister of National Defence Arvydas Anusauskas speaks during a press conference in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A soldier takes part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen check their position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian sniper poses for a photo before moving to a position on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman walks to his position in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A Ukrainian serviceman prepares ammunitions in a shelter on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) A soldier takes part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) Ukrainian servicemen walk in a trench on the front line in the Luhansk region, eastern Ukraine, Friday, Jan. 28, 2022. High-stakes diplomacy continued on Friday in a bid to avert a war in Eastern Europe. The urgent efforts come as 100,000 Russian troops are massed near Ukraine's border and the Biden administration worries that Russian President Vladimir Putin will mount some sort of invasion within weeks. (AP Photo/Vadim Ghirda) Soldiers take part in an exercise for the use of NLAW anti-aircraft missiles at the Yavoriv military training ground, close to Lviv, western Ukraine, Friday, Jan. 28, 2022. British defense secretary Ben Wallace told the U.K. had already delivered 2,000 NLAWs to Ukraine, a number he indicated might continue to rise. The missiles were London's way of providing defensive aid to Kyiv as Russian forces deploying around Ukraine's borders give the impression a new invasion may be imminent. (AP Photo/Pavlo Palamarchuk) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) A military police officer stands in front of a Danish Royal Air Force F-16 fighter jet during the welcome ceremony for the reinforcement of the NATO Air Policing Mission at the Siauliai military air force base some 230 km (144 miles) east of the capital Vilnius, Lithuania, Friday, Jan. 28, 2022. As tensions build with Russia, NATO is focused on defending its 30 member countries. (AP Photo/Mindaugas Kulbis) In this photo taken from video and released by the Russian Defense Ministry Press Service on Thursday, Jan. 27, 2022, a Russian Su-35S fighter jets taxies after landing on an airfield in Belarus to attend a Russia-Belarus military drills. Russia has launched a series of military drills: Motorized infantry and artillery units in southwestern Russia practiced firing live ammunition, warplanes in Kaliningrad on the Baltic Sea performed bombing runs, dozens of warships sailed for training exercises in the Black Sea and the Arctic, and Russian fighter jets and paratroopers arrived in Belarus for joint war games. (Russian Defense Ministry Press Service via AP) In this photo taken from video and released by the Russian Defense Ministry Press Service on Thursday, Jan. 27, 2022, Russian S-400 Triumf surface-to-air missile systems attend a military drills in Sverdlovsk region, Ural, in Russia. Russia has launched a series of military drills: Motorized infantry and artillery units in southwestern Russia practiced firing live ammunition, warplanes in Kaliningrad on the Baltic Sea performed bombing runs, dozens of warships sailed for training exercises in the Black Sea and the Arctic, and Russian fighter jets and paratroopers arrived in Belarus for joint war games. (Russian Defense Ministry Press Service via AP) A serviceman checks his machine-gun in a shelter on the territory controlled by pro-Russian militants at the frontline with Ukrainian government forces near Spartak village in Yasynuvata district of Donetsk region, eastern Ukraine, Thursday, Jan. 27, 2022. Fighting between Ukrainian forces and Russia-backed rebels has killed over 14,000 people, and efforts to reach a settlement have stalled. Since the conflict began, Russia has been accused of sending troops and weapons to the separatists, something it has denied. (AP Photo/Alexei Alexandrov) FILE In this handout photo released by The State Duma, The Federal Assembly of The Russian Federation Press Service, Russian Foreign Minister Sergey Lavrov addresses the State Duma, the Lower House of the Russian Parliament in Moscow, Russia, Wednesday, Jan. 26, 2022. Lavrov said the U.S. response contained some elements that could lead to "the start of a serious talk on secondary issues," but emphasized that "the document contains no positive response on the main issue." Those are Moscow's demands that NATO not expand and that the alliance refrain from deploying weapons that might threaten Russia. (The State Duma, The Federal Assembly of The Russian Federation Press Service via AP, File) In this photo taken from video and released by the Russian Defense Ministry Press Service on Thursday, Jan. 27, 2022, Russian S-400 Triumf surface-to-air missile systems attend a military drills in Sverdlovsk region, Ural, in Russia. Russia has launched a series of military drills: Motorized infantry and artillery units in southwestern Russia practiced firing live ammunition, warplanes in Kaliningrad on the Baltic Sea performed bombing runs, dozens of warships sailed for training exercises in the Black Sea and the Arctic, and Russian fighter jets and paratroopers arrived in Belarus for joint war games. (Russian Defense Ministry Press Service via AP) An armed serviceman walks along a trench on the territory controlled by pro-Russian militants on the frontline with Ukrainian government forces near Spartak village in Yasynuvata district of Donetsk region, eastern Ukraine, Thursday, Jan. 27, 2022. Fighting between Ukrainian forces and Russia-backed rebels has killed over 14,000 people, and efforts to reach a settlement have stalled. Since the conflict began, Russia has been accused of sending troops and weapons to the separatists, something it has denied. (AP Photo/Alexei Alexandrov) An Ukrainian serviceman heads to an advanced position on the front line in the Luhansk area, eastern Ukraine, Thursday, Jan. 27, 2022. The U.S. rejection of Russia's main demands to resolve the crisis over Ukraine left "little ground for optimism," the Kremlin said Thursday, but added that dialogue was still possible. (AP Photo/Vadim Ghirda) Ukrainian servicemen fill containers with water from a well for an advanced position on the front line in the Luhansk area, eastern Ukraine, Thursday, Jan. 27, 2022. The U.S. rejection of Russia's main demands to resolve the crisis over Ukraine left "little ground for optimism," the Kremlin said Thursday, but added that dialogue was still possible. (AP Photo/Vadim Ghirda)