"South Korea will be building its Nuclear Powered Submarine in the Philadelphia Shipyards," Trump wrote on his Truth Social platform.
Seoul was quick to praise this decision — South Korean Defense Minister Ahn Gyu-back told a parliamentary meeting on the same day that a nuclear-powered submarine would have "huge" military significance. South Korea currently operates conventional submarines, which run on a combination of diesel and electric power. But nuclear-powered vessels would offer improved speed and endurance to counter North Korea's capabilities, according to Ahn.