Stalin make a deal with Hitler, because he wrongly estimated the military capabilities of the Wehrmacht: he predicted that instead of rapid German victory over France in 1940 on the Western Front will begin a long positional war. He was going to use this time to modernize the Red Army and strike at Germany, at the time when they are exhausted by war. But what would have happened if Stalin better predicted the result of the campaign in 1940? Suppose that the fall of 1939 Stalin decides to attack Germany at the time of their victories in the West: resigns from the war with Finland, collects troops in the western regions of the USSR and waits. Coming in May 1940. Hitler crushes the French and the English. June 14 Germans enter Paris. On the same day Stalin announces general mobilization and makes suspend delivery of supplies to Germany. June 20, the Red Army begins an invasion. Germany are completely surprised and terrified. It passes many days before they manage to shift troops from France. At this time, the Soviets break the resistance of 18 divisions that Hitler left in Poland and quickly moving forward. Germany chaos, lack of fuel and food, Wehrmacht fighting no war plan, on the road in arrears crowds of refugees dramatically falling industrial production (due to general mobilization). Terrified Soviet successes Eastern European countries do not want to support the Third Reich. Whether in the long term, the Red Army could defeat Germany alone? Is the Soviet Union came to after the victory of the whole of Europe?