You don't know history [0][1]. Stalin was absolutely not content to cooperate with Nazi Germany as Stalin offered 1M soldiers to be sent to border with Germany if France and Britain agreed on anti-Nazi alliance. They didn't even respond. Unfortunately this only came out in 2000' when classified documents came out and Molotov–Ribbentrop Pact is the only thing people remember. Time to update your knowledge.
Of course British and French were wary of communist Soviet Union but Stalin did offer it to Allies first. That's a historical fact. Once they didn't respond he tried to prevent and postpone the war with Germany with a well known Molotov–Ribbentrop Pact because documents also show that Stalin was perfectly aware that Germans will attack no matter what.
The above doesn't negate Stalin's imperialistic ambitions towards Poland.
Of course British and French were wary of communist Soviet Union but Stalin did offer it to Allies first. That's a historical fact. Once they didn't respond he tried to prevent and postpone the war with Germany with a well known Molotov–Ribbentrop Pact because documents also show that Stalin was perfectly aware that Germans will attack no matter what.
The above doesn't negate Stalin's imperialistic ambitions towards Poland.
[0]https://www.wsj.com/articles/stalin-first-tried-to-resist-hi... [1]https://www.telegraph.co.uk/news/worldnews/europe/russia/322...