 Also flew support and interdictory missions on several occasions, bombing gun batteries and airfields in support of the Normandy invasion in June 1944, striking enemy positions to aid the breakthrough at Saint-Lô in July 1944, hitting storage depots and communications centres during the Battle of the Bulge (December 1944 − January 1945), and dropping food, ammunition, gasoline, and other supplies to troops participating in the airborne assault across the Rhine in March 1945.The 389th Bomb Group flew its last combat mission late in April 1945.It returned to Charleston AAF, South Carolina on 30 May 1945 and was inactivated on 13 September 1945.