One such vehicle is the T-80. In the 1960s, the Soviet Union produced the T-64, a new heavy tank. Soviet designers were already working on using gas turbine engines to power a tank. That vision ...

Many of these are outdated Cold War-era tanks inherited from the Soviet Union, like the T-80 main battle tank, which Russia has deployed heavily. The T-80 was derived from the T-64, which was ...