In 1934, Poland became the first country that signed the non-aggression pact with Hitler’s Nazi Germany.
Yes. I knew that.
People should also know that the Soviets and Nazis were most certainly in mutial alliance dealing with Eastern Europe during 1939-41, and that the USSR 1920’s Ukrainian Holodorm inspired Hitler ‘s Final Solution Holocaust atrocities.
Stalin also provided Hitler with advisers to help create Concentration camps and crematoriums.
Murderous USSR and Nazis share collectivist socialist authoritarian roots.
USSR primarily leveraged class hatred, Nazis primarily leveraged ethnic hatred.
See Historian account:
https://www.theguardian.com/commentisfree/cifamerica/2010/oct/05/holocaust-secondworldwar