 Soviet-built Mikoyan-Gurevich MiG-15 were the aircraft used during most of the conflict, and the area's nickname was derived from them.It was the site of the first large-scale jet-vs-jet air battles, with the North American F-86 Sabre.The North Koreans began their war against South Korea on June 25, 1950 with small numbers of Soviet aircraft retained from the Second World War.