The Lockheed F-104 Starfighter is an American single-engine, supersonic interceptor. Created as a day fighter by Lockheed as one of the "Century Series" of fighter aircraft for the United States Air Force (USAF), it was developed into an all-weather multirole aircraft in the early 1960s and extensively deployed as a fighter-bomber during the Cold War. It was also produced under license by other nations and saw widespread service outside the United States.