In March 1952, the division assumed responsibility for the air defense of Southwestern Japan (Kyūshū, the western part of Honshū, and most of Shikoku), using radar, fighter aircraft, and ground weapons to prevent or disrupt enemy air attacks. It supported numerous exercises, some involving U.S. and British naval vessels, and training for the Japan Air Self Defense Force. The division also supervised electronic countermeasures (ECM), and weather reconnaissance missions. In the summer of 1957, when the Nagasaki area suffered severe flooding, the 43d assisted Japanese authorities and people by flying numerous airlift missions with helicopters and fixed wing aircraft.
A shield argent on a bend azure three futuramic aircraft, in bend, or, between two lightning bolts in saltire gules and a magnetic field of the last with cardinal compass points and pylon of the last. (Approved 19 December 1956)
Colonel Charles W. Stark, 1 March 1952; Colonel Edward N. Backus, c. 1954; Colonel Samuel J. Gormly Jr., by 31 December 1954; Colonel James M. Smelley, 9 July 1956; Colonel Ladson G. Eskridge Jr., 13 August 1956–1 October 1957.