Ummmm, World War II probably would not have happened if Stalin hadn’t signed the Non-Aggression Treaty with Nazi Germany and divvied up Poland with them.
The Soviet Union deserved a LOT worse than what it got in WWII.
And again, Stalin was a bastard,
But WWII would started just because hitler wanted to rule the world.
Hitler started his war machinery in 1936 with idea to conquer the Europe.