The PT-76's a Soviet light amphibious tank which was introduced in the early 1950s and soon became the standard reconnaissance tank of the Soviet and the other Warsaw Pact armies. It was widely exported to other friendly states, like India, Iraq, North Korea and Vietnam. Overall, some 25 countries used the PT-76. The tank's full name's Floating Tank–76 (Plavayushchiy Tank, or ). 76 stands for the caliber of the main armament: the 76.2 mm D-56T series rifled tank gun. The PT-76's used in t… (More on Pt-76)