Former Soviet Union member state, Kazakhstan, has put more than 100 fighter jets and bombers built during the Soviet era up for sale to interested parties.
Even though the MiG-31 fighter jet has reached the age of 47, it still remains the fastest fighter aircraft in the world owned by the Russian Air Force.
In an unexpected move, Russia has been detected placing four high-altitude fighter aircraft, MiG-31s, at the Belbek airbase located in the occupied territory of Crimea.
President of Russia, Vladimir Putin, has announced that MiG-31 fighter jets will be equipped with hypersonic guided missiles called "Kinzhal" during patrols in the Black Sea.
