the 351st received a distinguished unit citation (duc) for performance on 9 october 1943, when an aircraft factory in germany was accurately bombed in spite of heavy flak and pressing enemy interceptors. it received another duc for its part in the successful attack of 11 january 1944, on aircraft factories in central germany. the group participated in the intensive air campaign against the german aircraft industry during "big week", 20–25 february 1944.