OSAN AIR BASE, Republic of Korea – Four United States Air Force F-22 “Raptor” fighter aircraft fly over Osan, South Korea, demonstrating the capabilities of the ROK-U.S. Alliance, Feb. 17. During his brief remarks, Gen. Jeong, Kyeongdoo, Republic of Korea Air Force Chief of Staff remarked that ‘the combined air operations flight carried out today by our two air forces projected dignity and authority from the ROK-US alliance and the international community.’