Share on Facebook F Share on Twitter L Share on LinkedIn I Subscribe to RSS R Print June 21, 2020 Topic: Security Blog Brand: The Reboot Tags: RussiaMig-21MilitaryAircraftWorldU.S. How Russia's MiG-21 Became The Most-Produced Supersonic Jet In Aviation History It's flown in more than 60 countries. by Robert Farley Follow drfarls on Twitter L Image: Wikipedia. Previous 1 2