The group dropped paratroops of the 82d Airborne Division's 504th Parachute Infantry Regiment near Overasselt on 17 September 1944, losing one plane. The mission was part of Operation Market Garden, a series of Allied airborne attacks in the Netherlands. The group flew reinforcement missions on succeeding days. On 18 September, 27 aircraft in two serials of the group and 36 aircraft from the 314th Troop Carrier Group dropped paratroopers of the British 4th Parachute Brigade at Drop Zone Y on Ginkel Heath. Several aircraft were lost to flak. On 21 September, the 314th and 315th Groups dropped elements of the 1st Polish Parachute Brigade near Driel, after numerous weather-caused delays. Five aircraft from the group were lost in the drop. On 23 September, the group dropped without loss the 560-strong remainder of the 1st Polish Parachute Brigade on Drop Zone O near Overasselt. The group landed at Grave on 26 September to unload paratroops and supplies. It airlifted gasoline and other critical supplies to Antwerp and Liège during the Battle of the Bulge in December 1944 and January 1945.