The powerful sister of North Korean leader Kim Jong-un on Tuesday warned of a stepped-up action against the arrival of a U.S. aircraft carrier in South Korea, claiming the U.S. move justifies the North bolstering its nuclear forces.

U.S. carrier Carl Vinson arrives in S. Korea The nuclear-powered aircraft carrier USS Carl Vinson docks at a naval base in the southeastern port city of Busan on March 2, 2025. The warship of the U.S.

USS Carl Vinson (CVN-70) pulled in to Busan Naval Base, South Korea on Sunday for a scheduled port visit, marking the first visit of a U.S. carrier to a foreign port during the second Trump administration.