New Georgia Campaign
In November 1942, the squadron became part of the joint-service South Pacific Combat Air Transport Command. Following this they made numerous supply drops during the New Georgia Campaign in 1943. The squadron was re-designated again to VMR-152 on June 3, 1944. In 1944, the squadron was flying in support of the Battle of Bougainville and would be based on Bougainville for the remainder of the war. From here the squadron also supported allied forces during the Philippines Campaign (1944–45) and the Battle of Okinawa. Following the surrender of Japan, the squadron flew in support of the 1st Marine Division during their occupation of Northern China from 1945 - 1947. Following their China duty the squadron returned to the United States where they were based at Marine Corps Air Station El Toro, California.