 The 109th was transferred to the European Theater of Operations (ETO), August–October 1942, becoming part of the VIII Fighter Command of Eighth Air Force and then in late 1943 it came under the command of the IX Fighter Command of Ninth Air Force.In May 1943 it was renamed into the 109th Reconnaissance Squadron and then the 109th Tactical Reconnaissance Squadron in November 1943 and then another name change in 1945 to the 109th Reconnaissance Squadron.In addition to flying photo reconnaissance missions in support of the strategic bombing missions in the ETO, the 109th flew photo reconnaissance missions in preparation for the D-Day landing at Normandy.