Mountain Home Air Force Base (IATA: MUO, ICAO: KMUO, FAA LID: MUO) is a United States Air Force installation in the western United States. Located in southwestern Idaho in Elmore County, the base is twelve miles (20 km) southwest of Mountain Home, which is forty miles (65 km) southeast of Boise via Interstate 84.
The host unit at Mountain Home since 1972 has been the 366th Fighter Wing (366 FW) of the Air Combat Command (ACC), nicknamed the "Gunfighters." The base's primary mission is to provide combat airpower and combat support capabilities to respond to and sustain worldwide contingency operations.
Constructed in the early 1940s during World War II as a training base for bombers, after the war it briefly had transports, then was a bomber and missile base. It became a fighter base 51 years ago in 1966.
Part of the base is a census-designated place (CDP); the population was 3,238 at the 2010 census.