Stalin was a fascist, he only 'saved' Europe from fascism because they weren't fascistic enough. And he wanted to rule the west himself like the evil Judeo-Bolshevik dictator he was...
You see politics is like a circle and if you go far enough left you come back round to be a fascist, keep going even further left and you become a centrist, go even more furtherer left and you become a communist again but this time doubly so, communism².