An Afghan soldier fighting for the Soviets sits on a Soviet-made T-64 tank near the Salang Pass on August 17, 1989.
However, these systems were mostly exported, and it's unclear whether either is currently operational on Ukrainian tanks.
Defending Ukraine, 2014-2015A Ukrainian tank in the eastern Ukrainian city of Slavyansk in July 2014.
A burned Ukrainian tank in Uglegorsk, on the frontline near Debaltseve, in February 2015.
A pro-Russian separatist stands guard near a T-64 tank in Donetsk in July 2014.