In 1944, the group converted to P-47 Thunderbolt aircraft and flew interdiction operations in Italy. The group moved to Corsica on 30 March 1944 to operate as a separate task force. It flew interdiction missions against railroads, communication targets, and motor vehicles behind enemy lines, providing a minimum of 48 fighter-bomber sorties per day. During 9 days of combat operations during early April 1944, the 57th exceeded 50 sorties per day. The group remained in northern Italy after the end of the European War, demobilizing throughout the summer of 1945. It was reassigned to the United States in August 1945 without personnel or equipment and was inactivated at the end of August.
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