The Mikoyan MiG-31 (NATO Reporting Name : Foxhound) is a supersonic interceptor and attack aircraft that was designed and developed by Mikoyan, and a successor of the Mikoyan-Gurevich MiG-25 "Foxbat". It is among the fastest combat jets in the world, and currently in used by the Russian and Kazakh air forces. It will have a successor, the MiG-41 and will be introduced in 2028. It will continue its service until 2030. The MiG-31 first flew in September 1975, and introduced in the Soviet Air Force in May 1981. It is piloted by 2 pilots, powered by 2 Soloviev D-30F6 afterburning turbofan engines, it has a top speed of 3,000 km/h (1,900 mph) or Mach 2.83 at a high altitude and 1,500 km/h (930 mph) or Mach 1.21 at a low altitude with a thrust-to-weight ratio of 0.85.

It is armed with one 23mm Gryazev-Shipunov GSh-6-23M gas operated rotary cannon, four R-33 (AA-9 Amos), and four R-60 (AA-8 Aphid). It can also be armed two heavy air-to-air R-40 missiles, four Kh-58 anti-radiation missiles, and a Kh-47M2 Kinzhal supersonic air-launched ballistic missile.