In the Korean War, from 1950 to 1953, North American Mustangs from No. 77 Squadron RAAF, stationed in Japan with the British Commonwealth Occupation Force, were among the first United Nations aircraft to be deployed, in ground support, combat air patrol, and escort missions. When the UN planes were confronted by North Korean Mikoyan-Gurevich MiG-15 jet fighters, 77 Sqn acquired Gloster Meteors, however the MiGs remained superior and the Meteors were relegated to ground support missions as the North Koreans gained experience. The air force also operated transport aircraft during the conflict. No. 77 Squadron flew 18,872 sorties, claiming the destruction of 3,700 buildings, 1,408 vehicles, 16 bridges, 98 railway carriages and an unknown number of enemy personnel. Three MiG-15s were confirmed destroyed, and two others probably destroyed. RAAF casualties included 41 killed and seven captured; 66 aircraft – 22 Mustangs and 44 Meteors – were lost.