What? That Germany started WW2 by attacking Poland in cahoots with the USSR? How is that wrong?
Edit: The European theatre, in Asia the war started earlier when Japan invaded China. The most commonly understood start of WW2 was thebinvasion of Poland and the resulting declarations of war.
The narrative that USSR started the war, surrounding the "Molotov-Ribbentrop Pact" often misinterprets it as a partnership between the Nazis and Soviets to undermine the sovereignty of Central and Eastern European nations. Typically misrepresented as an "alliance," this controversial "nonaggression" pact, which included undisclosed provisions, was actually the culmination of a complex and urgent sequence of events. It's noteworthy that similar agreements had previously been established with Nazi Germany, such as Britain's naval arms agreement in 1934, and a nonaggression pact with Poland that same year. Additionally, it was almost exclusively the Soviet Union that took a stand against fascist forces in the Spanish Civil War two years later, offering support to the democratically elected government facing a fascist uprising, without the backing of other international powers.
Finally the infamous Munich agreement of 1938, where Britain and France agreed to the dismemberment of the last democratic and multinational state in Central and East Europe, Czechoslovakia, occurred without any consultation with the Soviets.
Appeasement was a failure. And enabled Hitler a lot. It also gave him legitimacy.
And no, the USSR did not start the war, that "honour" goes to Germany. The USSR did grap its portion of Poland so.
Regarding Munich, even worse, Czechoslovakia wasn't really consulted neither.
Edit: The war in Europe was ended by all allies, including the USSR. And that the USSR did most of the fighting, and dying outside the holocaust, should be crystal clear to everyone who ever read a short history of WW2 on wikipedia.