In July 1944, Power was assigned to Marine Transport Squadron (VMR)-352 as a R5C (Navy version of Army Curtiss Commando C-46) transport co-pilot at Marine Corps Air Station Cherry Point, North Carolina. The squadron moved to Marine Corps Air Station El Centro in California in December 1944. Power was later reassigned to VMR-353, joining them on Kwajalein Atoll in the Marshall Islands in February 1945. From there, he flew missions carrying cargo in and wounded Marines out during the Battles of Iwo Jima (Feb-Mar 1945) and Okinawa (Apr-Jun 1945).