Established as a B-25 Mitchell medium bomber squadron in mid-1942, trained by Third Air Force in the southeastern United States. Deployed to IX Bomber Command in Egypt initially in March 1943 via Air Transport Command South Atlantic Route through Caribbean, Brazil, Liberia, Central Africa and Sudan, then reassigned to Mediterranean Theater of Operations (MTO), and to XII Bomber Command in Tunisia. Supported Allied ground forces in Tunisian Campaign; participated in Invasions of Sicily and Italy during 1943, supporting Allied ground forces with tactical bombing of enemy targets. Participated in liberation of Corsica during the spring of 1944, then returned to Italy engaging in attacks on enemy ground forces and targets in the Po Valley during the spring of 1945.