The MiG-23 is a variable geometry aircraft developed by the former Soviet Union, the MiG-23 was the first variable geometry fighter developed in the world, the F-111 was the first operational variable geometry aircraft though. The MiG-23 was designed as a variable geometry wing fighter with beyond visual range armament. The MiG-23 was greatly influenced by the F-111 and the F-4 however shows the design trends of the 1960s specially if we consider other aircraft programs such as the Mirage G or the Mirage Balzac.