Initial mission of the wing was to receive operational orders from Headquarters, IX Fighter Command and direct subordinate groups in attacking enemy targets in Occupied France and the Low Countries in preparation for the Normandy Invasion in June 1944.

Operational missions included strafing and dive-bombing armored vehicles, trains, bridges, buildings, factories, troop concentrations, gun emplacements, airfields, and other targets in preparation for the invasion of Normandy.

Also flew some escort missions with Eighth Air Force Boeing B-17 Flying Fortress and Consolidated B-24 Liberator strategic bombers.

Reassigned to support the United States Ninth Army in Belgium as a result of the German offensive during the Battle of the Bulge, December 1944.

Ninth Army halted its advance at the Elbe River in late April 1945, the wing engaging targets of opportunity in enemy-controlled areas until combat was ended on 5 May 1945.