The Great Patriotic War: The History of the Fighting Between the Soviets and Germans during World War II

In the warm predawn darkness of June 22, 1941, 3 million men waited along a front hundreds of miles long, stretching from the Baltic coast of Poland to the Balkans. Ahead of them in the darkness lay the Soviet Union, its border guarded by millions of Red Army troops echeloned deep throughout the huge spaces of Russia. This massive gathering of Wehrmacht soldiers from Adolf Hitler's Third Reich and his allied states – notably Hungary and Romania – stood poised to carry out Operation Barbarossa, Hitler's surprise attack against the country of his putative ally, Soviet dictator Joseph Stalin.

Though Germany was technically Russia’s ally, Stalin had no delusions that they were friends. Instead, he used this time to build up his forces for what he saw as an inevitable invasion. First, on the heels of the German invasion of Poland in September 1939, Stalin had his troops invade and reclaim the land Russia had lost in World War I. Next he turned his attention to Finland, which was only 100 miles from the newly named Leningrad.  He initially tried to negotiate with the Finnish government for some sort of treaty of mutual support. When this failed he simply invaded. While the giant Russian army ultimately won, the fact that little Finland held them off for three months demonstrated how poorly organized the bigger force was.

What Stalin did not realize was that Hitler had simply overstretched himself in Yugoslavia and only planned to delay the invasion by a few weeks.  The Soviets were so caught by surprise at the start of the attack that the Germans were able to push several hundred miles into Russia across a front that stretched dozens of miles long, reaching the major cities of Leningrad and Sevastopol in just three months.