The 56th Training Squadron is an active United States Air Force unit. Its is assigned to the 56th Operations Group at Luke Air Force Base, Arizona. The squadron was first activated at Hamilton Field, California in 1941 as the 56th Pursuit Squadron. It deployed to Alaska where it earned a Distinguished Unit Citation in combat during the Aleutian Campaign. It returned to the United States, where it became a training unit and was disbanded in a general reorganization of the Army Air Forces in 1944.