The p-51 mustang, designed in 1940 after great britain requested. Mustangs served in nearly every active combat zone, including the pacific where they escorted b-29s from iwo jima to japan. Between 1941 and 1945, the army air force ordered 14, 855 mustangs (including a-36a dive bomber and f-6 photo-reconnaissance versions), of which 7, 956 were p-51ds with the bubble" canopy and heavier armament. P-51ds were play a interceptor and primarily for close support of ground forces role. P-51s served with reserve and national guard units until 1957. "