USS Iowa (BB-61) 1948, as part of the post World War II drawdown of the armed forces, "Iowa" was deactivated at San Francisco, and then formally decommissioned into the United States Navy reserve fleets on 24 March 1949. In 1950, North Korea invaded South Korea, prompting the United Nations to authorize military intervention. President Harry S. Truman ordered US forces stationed in Japan to transfer to South Korea. Truman also sent US based troops, tanks, fighter and bomber aircraft, and a strong naval force to the area to support South Korea. As part of the naval mobilization, "Iowa" was reactivated on 14 July
North Korea–South Korea relations Seoul, to be occupied by the US. This was incorporated into General Order No. 1 to Japanese forces after the Surrender of Japan on August 15. On August 24, the Red Army entered Pyongyang and established a military government over Korea north of the parallel. American forces landed in the south on September 8 and established the United States Army Military Government in Korea. The Allies had originally envisaged a joint trusteeship which would steer Korea towards independence, but most Korean nationalists wanted independence immediately. Meanwhile, the wartime co-operation between the Soviet Union and the US deteriorated as the Cold