That pact was the reason WW2 started when it did.
The moment Hitler got the news he slammed his hand hard down on a table and shouted “we have them!”.
The Soviets got what they deserved when Adolf double-crossed them.
Stalin said the same thing. He thought he was going to get a war in the West, which would destroy the British, French and German armies, and all of Europe would be easy pickings for the Red Army. Of course, one thing he didn't count on...France falling without much of a fight.
Well said.