The unit received a Distinguished Unit Citation (DUC) for eight missions to Germany between 3 and 13 September 1944 when the group not only destroyed enemy fighters in the air to protect the bombers it was escorting, but also descended to low levels, in spite of intense anti-aircraft fire, to strafe airfields and to destroy enemy aircraft on the ground. They received a second DUC for operations on 19 February 1945 when the organisation flew a sweep over Germany to hit railway tracks, locomotives, oil cars, goods wagons, troop cars, buildings, and military vehicles. The 55th flew their last combat mission on 21 April 1945.