By the war's end, 242 F-100 Super Sabres had been lost in Vietnam, as the F-100 was progressively replaced by the F-4 Phantom II and the F-105 Thunderchief. The Hun had logged 360,283 combat sorties during the war and its wartime operations came to end on 31 July 1971. The four fighter wings with F-100s flew more combat sorties in Vietnam than over 15,000 P-51 Mustangs flew during World War II. After 1965, they did not fly into North Vietnam and mainly performed close air support missions. Despite the April 1965 dogfight, the air force classified the engagement as resulting in a "probable" kill, and no F-100 was ever officially credited with any aerial victories. No F-100 in Vietnam was lost to enemy fighters, but 186 were shot down by anti-aircraft fire, seven were destroyed from Vietcong attacks on airbases, and 45 crashed in operational incidents.