Why did Germany and the Soviet Union sign the Nazi-Soviet Pact in 1939?
Hitlers intention all along was to invade Poland. The only way he could do that without interference from Russia was to sign the Pact and allow Stalin to invade Finland without interference. That pact put all the pressure on France to declare war on Germany and split their forces(which weakened them tremendously) to stop the Germans and to monitor the Russians. The “Pact” back fired on Stalin as the Fins kicked the Russians butts. Hitler licked his chops because France was left all alone to defend a very long border. By the time the British tried to come to the aide of the French it was far too late as the “Blitzkrieg” had already proved how outdated the French military strategies and defenses were.