The F-4 Phantom II is a fighter-bomber manufactured by McDonnell Aircraft and was originally developed for the US Navy. The Phantom was used extensively in the Vietnam War and was utilized for ground-attack and reconnaissance roles.
The initial F4H-1 (later F-4B) entered service in 1961. The USAF evaluated it for close air support, interdiction, and counter-air operations. Operational squadrons flew navy F-4Bs until the late 1960s. During the early 1970s, 228 F-4Bs were upgraded as F-4N under Project Bee Line.
The primary users and operators of the Phantom are the United States Air Force, United States Navy and the United states Marine Corps. There are several number of F-4 Phantom IIs on display in the USA and worldwide. As of 2001, there are 744 active in non-US service and as drones.