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
South Korea U.S. zones of occupations. A separate election was held in the U.S. zone in 1948 which led to the creation of the Republic of Korea (ROK), while the Democratic People's Republic of Korea (DPRK) was established in the Soviet zone. The United Nations at the time passed a resolution declaring the ROK to be the only lawful government in Korea. The Korean War began in 1950 when forces from the North invaded the South. The war lasted three years and involved the U.S., China, the Soviet Union and several other nations. The border between the two nations remains the most