T-72

The T-72 is a family of Soviet main battle tanks that entered production in 1973, based on the development of the T-64 and Object 167M. The T-72 was a result of a rivalry between design teams, with Morozov KB and Uralvagon KB competing to produce a better tank. The T-64's smaller design presented problems, including an unreliable engine, and a "mobilization model" was developed to address these issues. The T-72 has seen service in 40 countries and has been widely exported, with various modernized models continuing to be produced today.learn more on wikipedia