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N. Korea says it test-fired biggest ICBM, US adds sanctions

Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) Japan's United Nations Ambassador Kimihiro Ishikane address the United Nations Security Council, concerning North Korea test-fire of its biggest intercontinental ballistic missile (ICBM), Friday March 25, 2022 at U.N. headquarters. (AP Photo/Bebeto Matthews) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) A man watches a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. The letters read "North Korea, Fire ICBM." (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) People watch a TV screen showing a news program reporting about North Korea's ICBM with an image of North Korean leader Kim Jong Un at a train station in Seoul, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Lee Jin-man) South Korean Army's armored vehicles position themselves in Paju, near the border with North Korea, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Ahn Young-joon) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) South Korean Army's armored vehicles position themselves in Paju, near the border with North Korea, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Ahn Young-joon) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) South Korean Army's armored vehicles position themselves in Paju, near the border with North Korea, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Ahn Young-joon) South Korean Army's K-55 self-propelled howitzers move in Paju, near the border with North Korea, South Korea, Friday, March 25, 2022. North Korea said Friday it test-fired its biggest-yet intercontinental ballistic missile under the orders of leader Kim Jong Un, who vowed to expand the North's "nuclear war deterrent" while preparing for a "long-standing confrontation" with the United States. (AP Photo/Ahn Young-joon) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a Hwasong-17 intercontinental ballistic missile (ICBM) before its test-fire, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, front, claps during a test-fire of what it says a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un, center, walks around what it says a Hwasong-17 intercontinental ballistic missile (ICBM) on the launcher, at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) In this photo distributed by the North Korean government, North Korean leader Kim Jong Un watches what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP) This photo distributed by the North Korean government shows what it says a test-fire of a Hwasong-17 intercontinental ballistic missile (ICBM), at an undisclosed location in North Korea on March 24, 2022. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)