The T-34 is a Soviet medium tank introduced in 1940, famously deployed during World War II against Operation Barbarossa.The T-34 was the mainstay of Soviet armoured forces throughout the war. Its general specifications remained nearly unchanged until late 1944, when it received a firepower upgrade with the introduction of the greatly improved T-34/85 variant. Its production method was continuously refined to meet the needs of the Eastern Front, making the T-34 quicker and cheaper to produce. The Soviets ultimately built over 80,000 T-34s of all variants, allowing steadily greater numbers to be fielded despite the loss of tens of thousands in combat against the German Wehrmacht