The McDonnell Douglas F-4 Phantom II is a tandem two-seat, twin-engine, all-weather, long-range supersonic jet interceptor and fighter-bomber. First introduced in the 1960s, it was widely used by the United States Air Force and U.S. Navy during the Vietnam War. The F-4 is known for its versatility, capable of engaging in air-to-air combat as well as ground attack missions. Equipped with advanced avionics and weapons systems, the F-4 can carry a variety of missiles and bombs, making it a formidable aircraft. Over 5,000 units were produced, and it served in numerous air forces around the world, remaining in service for decades due to its adaptability and performance.