The unit's World War II predecessor unit, the 439th Troop Carrier Group was a C-47 Skytrain transport unit assigned to Ninth Air Force in Western Europe. During Operation Overlord, two serials of aircraft, one of 45 and the other of 36 from the 439th TCG were dispatched late in the evening of 5 June to drop the 506th Parachute Infantry Regiment during the first hour of the invasion behind Utah Beach.