The 383d Fighter Squadron is an active United States Air Force unit assigned to the 495th Fighter Group. It is stationed at Buckley Space Force Base, Colorado, where it is an active duty associate unit of the 120th Fighter Squadron. The squadron was first activated in 1943. After training in the United States, it deployed to the European Theater of Operations. It flew combat missions until 1945, earning a Distinguished Unit Citation for its actions on 27 December 1944, defending a heavy bomber formation during a raid on Frankfurt am Main. Following V-E Day, the squadron returned to the United States and was inactivated at Camp Kilmer, New Jersey, the port of embarkation.