The MiG-17 (NATO reporting name: Fresco) was a Soviet high-subsonic fighter aircraft designed by Mikoyan-Gurevich in early 1950s and produced in the USSR from 1952 and operated by numerous air forces of communist bloc nations in many variants. It was the result of further development of the Korean War-era MiG-15, and was further improved into the MiG-19. It saw most of its combat service during the Vietnam War, where it was used by the North Vietnamese Air Force.