The IS-2 (also known as the Joseph Stalin Tank) was a Soviet heavy tank that was used during World War II. It was developed in the early 1940s and saw action in the later stages of the war. The tank was heavily armored and armed with a 122 mm
From Wikipedia
The IS-2 is a Soviet heavy tank, the second of the IS tank series named after Soviet leader Joseph Stalin. It was developed and saw combat during World War II and saw service in other Soviet allied countries after the war.