WW II Operation Barbarossa, narrated by Burt Lancaster.
This video is mostly about the first phase of Hitler's sneak attack on the Soviet Union but also has some info about the build up to WW II.
The conflict between Hitler's Germany and Stalin's Russia claimed more than 30 million lives. On the early morning of June 22, 1941, the Nazi Wehrmacht had amassed 4.2 million crack troops along a front that stretched for 1,800 miles, and Operation Barbarossa, the invasion of the Soviet Union began. The Nazi high command was extremely confident, expecting the total collapse of Stalin's Russia within six weeks. In reality, the War raged on for nearly four years. The Nazis and Soviets fought the greatest single campaign in military history.
The Soviet victory at Stalingrad was the turning point in the European theater, it was all down hill for Germany after the battle.
The Soviets ended the war in Europe when they captured Berlin and Hitler committed suicide rather than be captured by the Red Army, they were going to put Hitler in a cage like an animal and parade him through the streets of Moscow.