The 318th Fighter Group was activated in October 1942 when the remainders of the 72d and 44th Fighter Squadrons were transferred from the 15th and 18th Groups after their former groups were deployed to the Central Pacific. They were part of the 7th Air Force until summer of 1945. The initial mission of the 318th was air protection of the Hawaiian Islands. The 73d and 333d Fighter Squadrons were transferred in November 1942 and January 1943. The 318th was the first unit to receive the new long range P-47Ns in early 1945 before moving to Okinawa on Ie Shima.