[From "Did Hitler save Europe?"]

As more evidence concerning the buildup to Operation Barbarossa surfaces, historians are increasingly being forced to confront the case for a very politically incorrect conclusion about World War II

According to Suvorov, if Hitler had not attacked first, the gigantic military power that Stalin had accumulated on the border would have enabled him to reach Berlin without major difficulty and then, in the context of the war, to take control of the continent. Only Hitler’s decision to preempt Stalin’s offensive deprived him of these resources by piercing and disrupting his lines and destroying or seizing about 65% of all his weaponry, some of it still in trains

[…]
Perhaps the most significant fact may be this: the secret protocol of the Molotov-Ribbentrop Pact gave two-thirds of Poland to the Soviet Union and one-third of it to Germany, despite the fact that Germany was reclaiming a sizable amount of Germany territory that contained German people, while the Soviet action was pure foreign conquest.

Of course, just to stack irony on top of irony, given the horrific state of Western Europe, it's possible that Hitler didn't save Europe by preventing Stalin from overrunning the entire continent, he left it to a worse fate by leaving it under the control of the neo-liberal world order. As awful as communism is for a nation, it's not anywhere nearly as destructive as free imports and free invasion