Received a Distinguished Unit Citation for performance at Wiener Neustadt, Austria on 10 May 1944: when other groups turned back because of adverse weather, the 456th proceeded to the target and, withstanding repeated attacks by enemy interceptors, bombed the manufacturing center. Helped to prepare the way for and supported the invasion of Southern France during July and August 1944. At the same time, expanded previous operations to include attacks on oil refineries and storage facilities, locomotive works, and viaducts in France, Germany, Czechoslovakia, Hungary, Austria, and the Balkans.