Entering service in the early 1960s, the M60 tank was in production for 23 years and formed the backbone of US Army and Marine armoured units during the Cold War. Over 15,000 were built in four basic models: the M60, M60A1, M60A2, and the M60A3....
The MiG-21 (NATO reporting name Fishbed) firmly holds the title of the world's most widely built and used jet fighter, with more than 10,000 units rolling off the lines of three plants in the former Soviet Union. The type was also built under...