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2 killed in east Ukraine; Russia claims deadly barracks hit

Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen of Karpatska Sich battalion "Diesel", left and "Sten",right, install a scope on a AK-74 rifle near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) "Diesel", a Ukrainian serviceman of Karpatska Sich battalion prepares before going to his position near the recently liberated town of Lyman, Ukraine, Sunday, Jan. 8, 2022. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) "Sirko", a Ukrainian serviceman of Karpatska Sich battalion tests his AK-74 rifle near the recently retaken town of Lyman, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Evgeniy Maloletka) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) Ukrainian servicemen stand guard the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) A pilot shows thumbs up before a combat flight standing near his helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A soldier loads the weapon in a helicopter at a Ukrainian military air base close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian helicopter fires at the Russian positions in the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) A Ukrainian soldier waves to a military helicopter returning from the combat, close to the frontline in the Kherson region, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/LIBKOS) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) Nina Gonchar, 93, sits in her house which was mostly destroyed by Russian forces in the recently retaken village of Bogorodychne, Ukraine, Saturday, Jan. 7, 2022. Gonchar's son Vasyliy and his wife Liubov were killed by Russian shelling on July 10, 2022. (AP Photo/Evgeniy Maloletka) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) Nina Gonchar, 93, sits in her house which was mostly destroyed by Russian forces in the recently retaken village of Bogorodychne, Ukraine, Saturday, Jan. 7, 2022. Gonchar's son Vasyliy and his wife Liubov were killed by Russian shelling on July 10, 2022. (AP Photo/Evgeniy Maloletka) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) Nina Gonchar, 93, sits in her house which was mostly destroyed by Russian forces in the recently retaken village of Bogorodychne, Ukraine, Saturday, Jan. 7, 2022. Gonchar's son Vasyliy and his wife Liubov were killed by Russian shelling on July 10, 2022. (AP Photo/Evgeniy Maloletka) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) Nina Gonchar, 93, sits in her house which was mostly destroyed by Russian forces in the recently retaken village of Bogorodychne, Ukraine, Saturday, Jan. 7, 2022. Gonchar's son Vasyliy and his wife Liubov were killed by Russian shelling on July 10, 2022. (AP Photo/Evgeniy Maloletka) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) People kneel as the Ukrainian servicemen carry the coffin of their comrade Oleh Yurchenko killed in a battlefield with Russian forces in the Donetsk region during a commemoration ceremony in Independence Square in Kyiv, Ukraine, Sunday, Jan. 8, 2023. (AP Photo/Efrem Lukatsky) Nina Gonchar, 93, sits in her house which was mostly destroyed by Russian forces in the recently retaken village of Bogorodychne, Ukraine, Saturday, Jan. 7, 2022. Gonchar's son Vasyliy and his wife Liubov were killed by Russian shelling on July 10, 2022. (AP Photo/Evgeniy Maloletka) A destroyed bridge across Siverskyi-Donets river in the recently retaken village of Bogorodychne, Ukraine, Saturday, Jan. 7, 2022. (AP Photo/Evgeniy Maloletka) Nina Gonchar, 93, and her son Mykola Gonchar, 58, sit inside their house which was mostly destroyed by Russian forces in the recently retaken village of Bogorodychne, Ukraine, Saturday, Jan. 7, 2022. Gonchar's son Vasyliy and his wife Liubov were killed by Russian shelling on July 10, 2022. (AP Photo/Evgeniy Maloletka)