US, S. Korea open biggest drills in years amid North threats

FILE - South Korean army soldiers prepare for an exercise at a training field in Paju, South Korea, near the border with North Korea, Wednesday, July 27, 2022. The United States and South Korea began their biggest combined military training in years Monday, Aug. 22, 2022, as they heighten their defense posture against the growing North Korean nuclear threat. (AP Photo/Ahn Young-joon, File)

South Korean President Yoon Suk Yeol, top center, presides over a Cabinet meeting at the presidential office in Seoul, South Korea, Monday, Aug. 22, 2022. The United States and South Korea began their biggest combined military training in years Monday as they heighten their defense posture against the growing North Korean nuclear threat. (Suh Myung-geon/Yonhap via AP)

Protesters put stickers on a banner during a rally to oppose the joint military exercises between the U.S. and South Korea in front of the presidential office in Seoul, South Korea, Monday, Aug. 22, 2022. The United States and South Korea began their biggest combined military training in years Monday as they heighten their defense posture against the growing North Korean nuclear threat. The banners read "Stop the joint military exercises between the U.S. and South Korea." (AP Photo/Ahn Young-joon)

Protesters stage a rally to oppose the joint military exercises between the U.S. and South Korea in front of the presidential office in Seoul, South Korea, Monday. The United States and South Korea began their biggest combined military training in years Monday as they heighten their defense posture against the growing North Korean nuclear threat. The banners read “Stop the military exercise.”. (AP Photo/Ahn Young-joon)

SEOUL, South Korea — The United States and South Korea began their biggest combined military training in years Monday as they heighten their defense posture against the growing North Korean nuclear threat.