 Several months later, the unit was redesignated the 15th Fighter Group.That summer, the group's mission changed.Although defense of the islands continued to be an important responsibility, continuing to provide combat training for fighter pilots with the Bell P-39 Airacobra, Curtiss P-40 Warhawk and the Republic P-47D Thunderbolt became the primary mission of the elements of the group remaining in Hawaii for the next two years.