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
25th Infantry Division Artillery (United States) Division was ordered to defend the final US/South Korean stronghold of Pusan against North Korean attack. In July 1950, the 25th DIVARTY landed in South Korea with the 8th, 64th, 90th, and the 159th Field Artillery Battalions. 25th DIVARTY fires supported the first offensive actions by the division with the capture of the Yechon Road Junction on July 20, 1950. 25th DIVARTY participated in all ten of 25th Infantry Division's campaigns. 25th DIVARTY entered the Vietnam War in support of 25th Infantry Division, 1st Marine Division, and Republic of Vietnam forces to provide fire support to these units, additionally 25th