Actually, the Soviet Union set off WW II with the Molotov-Ribbentrop pact, which gave National Socialist Germany a free hand to invade Poland, then western Europe. The USSR then collaborated in the rape of Poland. Stalin gloated over his "brilliance" in turning the Nazis loose on the western democracies.
Britain and France went to war to restore the independence to Poland, but the war ended with only Stalin really winning, because all of E. Europe plus much of Germany were then in the Soviet empire. In terms of long-term strategic consequences, the Nazis were effectively facilitators of Soviet interests.
Stalin signed the pact in the hope that Germany, England and France would get into a long war that would exhaust their armies and economies, and then the Soviets would swoop in and gain all of Europe.
It actually was a blessing in disguise that France fell as quickly as it did, because had it not happened, the Soviets may very well had ended up with ALL of Europe.
I understand, understood before you posted, and agree.
I have at least three advantages over today’s college students when it comes to understanding history (1) I studied it before it got so polluted with political correctness, (2) I still study it on my own, and (3) I have more years actually living thru it. Just finished “The World at War” series agian.