Why did Hitler make a deal with the Soviet Union in World War 2?

• What did the soviet union do in World War 2?
  "Tore the heart out of the Germans", according to Winston Churchill. The Soviet Union fought back a German invasion at a huge price; they lost more people than any other nation in the war.
  
• What did the soviet union do after World War 2?
  It started an arms race with the United States
  
• Was Hitler in world war 2?
  He was the leader of one of the major countries involved in World War 2. Given the extent of his personal involvement in determining general strategy, he was arguably "in" it more than almost any of...
  
• Why did Hitler declare war on the Soviet Union during World War 2?
  In Hitler's speech on June 11 1941, he said the Soviet Union was provoking Germany because it was run by Bolsheviks and Jews and part of the British 'encirclement' of Germany.
  
• What did Hitler do in world war 2?
  He led a political group that followed the doctrines of an ideological group called Nazism. "Once Hitler was in power, he banned all political parties except the Nazi Party. He took control of all...