The group took part in the intensive campaign of heavy bombers against the German aircraft industry during Big Week, 20–25 February 1944. The group flew support and interdictory missions. Struck airfields, railroads, and V-weapon sites in preparation for the Normandy invasion; supported the invasion in June 1944 by attacking strong points in the beachhead area and transportation targets behind the front lines. The group aided the Caen offensive and the Saint-Lô breakthrough in July. Dropped food, ammunition, and other supplies to troops engaged in the airborne attack on the Netherlands in September. The group also helped to check the enemy offensive during the Battle of the Bulge, December 1944-January 1945, by striking bridges, tunnels, choke points, rail and road junctions, and communications in the battle area. The group attacked airfields and transportation in support of the advance into Germany, and flew a resupply mission during the airborne assault across the Rhine in March 1945.