I think you would agree that USSR was a criminal regime that killed millions of your compatriots, wouldn't you?
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I agree of cause. I just notice that ukranians and bellorussians sametimes do not eager to return those lands took by Stalin from Poland in 1939.
Just because they think then and now the same that it is THIERS not polish hence for THEM Stalin did right thing in 1939. Opposite Russians got nothing from 1939.
Stalin got green light to annex Balitc states and attack (in other words - spread good news of communism) Finland.
You as a nation got time (1,5 year) and space (buffer lands) to prepare before ex-ally Hitler went for your throats in mainland Russia.