Aided ground forces in Normandy on D-Day, 6 June 1944. The 487th Bomb Group attacked German troops and artillery positions to assist British forces near Caen in July; struck gun emplacements to support the Allied effort at Brest in August and to cover the airborne attack on the Netherlands in September 1944. Flew a few missions against German industries, refineries, and communications during the period May–August 1944, but operated almost solely against strategic targets from August 1944, when conversion to B-17's was completed in March 1945.