The McDonnell Douglas F-4 Phantom II is an American tandem two-seat, twin-engined, all-weather, long-range supersonic jet interceptor fighter/fighter-bomber originally developed for the United States Navy by McDonnell Aircraft. The United States began using the F-4 Phantom to counter the North Vietnese Army's MiG-17. With its state of the art technology, the Phantom was far superior to the MiG-17 and gained the nickname "MiG killer". The U.S spared no expense in their attempt to dominate every aspect of battle in Southeast Asia, and the Phantom is an example of this attitude towards the war.