

U.S. soldiers take part in a joint military drill which is a part of the Freedom Shield joint military exercise between South Korea and U.S., at a military training field near the demilitarized zone separating the two Koreas in Paju, South Korea, March 16, 2023. Yonhap via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. SOUTH KOREA OUT. NO RESALES. NO ARCHIVE.


U.S. soldiers take part in a military exercise which is a part of the Freedom Shield joint military exercise between South Korea and U.S., at a training field near the demilitarized zone separating the two Koreas in Pocheon, South Korea, March 19, 2023. REUTERS/Kim Hong-Ji


U.S. soldiers work on M777 howitzer during a military exercise which is a part of the Freedom Shield joint military exercise between South Korea and U.S., at a training field near the demilitarized zone separating the two Koreas in Pocheon, South Korea, March 19, 2023. REUTERS/Kim Hong-Ji


Dead leaves are scattered as a U.S Army CH-47 Chinook transporting a M777 howitzer prepares to land during a military exercise which is a part of the Freedom Shield joint military exercise between South Korea and U.S., at a training field near the demilitarized zone separating the two Koreas in Pocheon, South Korea, March 19, 2023. REUTERS/Kim Hong-Ji TPX IMAGES OF THE DAY


U.S. soldiers take part in a military exercise which is a part of the Freedom Shield joint military exercise between South Korea and U.S., at a training field near the demilitarized zone separating the two Koreas in Pocheon, South Korea, March 19, 2023. REUTERS/Kim Hong-Ji


South Korean soldiers take part in a joint military drill which is a part of the Freedom Shield joint military exercise between South Korea and U.S., at a military training field near the demilitarized zone separating the two Koreas in Paju, South Korea, March 16, 2023. Yonhap via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. SOUTH KOREA OUT. NO RESALES. NO ARCHIVE.


South Korean and U.S. soldiers take part in their joint river-crossing drill which is a part of the Freedom Shield joint military exercise, near the demilitarized zone separating the two Koreas, in Yeoncheon, South Korea, March 13, 2023. The Defence Ministry/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY.


South Korean soldiers take part in a joint river-crossing drill which is a part of the Freedom Shield joint military exercise between U.S. and South Korea, near the demilitarized zone separating the two Koreas, in Yeoncheon, South Korea, March 13, 2023. The Defence Ministry/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY.


U.S. soldiers take part in a military exercise which is a part of the Freedom Shield joint military exercise between South Korea and U.S., at a training field near the demilitarized zone separating the two Koreas in Pocheon, South Korea, March 19, 2023. REUTERS/Kim Hong-Ji
South Korea and the United States hold joint military drills