Rings of Supersonic Steel: An Introduction & Site Guide Air Defenses of the United States Army 1950-1979
Mark L. Morgan developed an interest in Cold War systems and operations during the early 1980s. A member of a multitude of professional and history organizations, Mark has authored two other books besides Rings of Supersonic Steel including a history of his old airplane, the Grumman A-6 Intruder. He currently lives in St Louis, Missouri.