Field in December 1945 and both III Bomber and III Fighter Commands were inactivated on 8 April 1946. Strategic Air Command 307th Bombardment Group On 21 March 1946, Continental Air Command was redesignated as Strategic Air Command (SAC). On 4 August 1946, SAC activated the 307th Bombardment Group (Very Heavy) as the host unit at MacDill, initially equipped with Boeing B-29 Superfortresses. Known initial operational squadrons of the group were the 370th, 371st, and 372d Bombardment Squadrons. The group was selected as SAC's first antisubmarine unit in December 1946. A precursor to similar SAC units, the group began training other SAC combat units in antisubmarine warfare and operational procedures until this mission became solely assumed by the U.S. Navy. In February 1947, the group began operating a B-29 transition training school and standardized combat training for all SAC units, and in September 1947, the bomb group and the base became a U.S. Air Force organization and installation with its divestment from the U.S. Army and the establishment of the Air Force as an independent branch of the U.S. armed forces. The unit was redesignated as the 307th Bombardment Wing, Medium, on 12 July 1948. Under the wing designation, the 306th Bombardment Group (effective 12 August 1948) and 307th Bombardment Group (effective 12 July 1948) were attached to the wing. This brought three additional operational squadrons (367th, 368th, and 369th Bombardment Squadrons) under the wing's command. In 1952, the 307th Bombardment Wing was bestowed the lineage, honors, and history of the USAAF 307th Bombardment Group of World War II fame. On 1 September 1950, the 307th Bomb Group with its three squadrons of B-29s was deployed to Far East Air Force Bomber Command, Provisional, at Kadena Air Base, Okinawa, engaging in combat operations during the Korean War. From Kadena, the 307th staged attacks against the rapidly advancing communist forces in South Korea. While in Okinawa, the 307th was awarded the Republic of Korea Presidential Unit Citation for its air strikes against enemy forces in Korea. It was also awarded the Distinguished Unit Citation and several campaign streamers. The 307th BG returned from deployment on 10 February 1951, but elements of the group remained deployed in Okinawa on a permanent basis. Later in 1951, the B-29s of the group at MacDill were replaced by the Boeing B-50D Superfortress. Also on 1 September 1950, the 306th Bomb Group was transferred to the newly