Spitfires from the squadron provided support for Allied Forces as the Invasion of Italy began with the capture of Sicily, and later the landings by Allied forces in Fascist Italy, moving north supporting the Fifth Army during the Italian Campaign. As Allied bomber forces operating from Italy began the strategic bombing of Axis petroleum and communications facilities in central Europe and the Balkans, the squadron was re-equipped with the North American P-51 Mustang to replace the shorter-ranged Spitfire. In August 1944, the P-51's were involved in the invasion of Southern France. In December 1944, the first destruction of a German jet fighter by a 308th P-51 occurred, eventually operating from the Po Valley in Northern Italy at the end of the European War in May 1945.