Beginning in the summer of 1944, oil installations became major targets. In addition to strategic operations, the group engaged in support and interdictory missions, hitting bridges and gun positions in support of the Invasion of Normandy in June 1944. The unit bombed enemy positions at Saint-Lô in July and at Brest in August and September Other missions were striking transportation and ground defences in the drive against the Siegfried Line, October – December 1944; attacking marshalling yards, defended villages, and communications in the Ardennes sector during the Battle of the Bulge, December 1944 – January 1945; and covering the airborne assault across the Rhine in March 1945.