The 451st received a Distinguished Unit Citation for each of three missions: to an aircraft factory at Regensburg on 25 Feb 1944, to oil refineries and marshalling yards at Ploesti on 5 Apr 1944, and to an airdrome at Vienna on 23 Aug 1944; although encountering large numbers of enemy fighters and severe antiaircraft fire during each of these missions, the group fought its way through the opposition, destroyed many interceptors, and inflicted serious damage on the assigned targets.