 After V-J Day and the end of the War in the Pacific, the squadron moved to Grand Island Army Air Field, Nebraska, where it became one of the first bomber units of Strategic Air Command (SAC) in March 1946.In August 1946, the 28th Bombardment Group replaced the 449th Group at Grand Island, and the squadron was inactivated and its personnel and equipment were transferred to the 77th Bombardment Squadron on 4 August 1946.In February 1963, The 449th Bombardment Wing was organized at Kincheloe Air Force Base, Michigan, where it assumed the aircraft, personnel and equipment of the discontinued 4239th Strategic Wing.