The U.S. Air Force, Navy, and Marine Corps and the air forces of 12 other nations have flown the multi-role Phantom II. In this aircraft, then a Navy F-4J, on June 21, 1972, Cmdr. S. C. Flynn and his radar intercept officer, Lt. W. H. John, spotted three enemy MiG fighters off the coast of Vietnam and shot down one MiG-21 with a Sidewinder air-to-air missile. This Phantom also flew combat air patrols and bombing missions during the Linebacker II bombing campaign that same year.

Later assigned to the Marine Corps, this F-4J was extensively modernized and designated an F-4S. Changes included improving the engines (smokeless), hydraulics, electronics, and wiring; modifying the wings to increase maneuverability; and adding a radar homing and warning antenna, as well as formation tape lights on the fuselage and vertical tail.