They only beat the Nazi Germany after allying with them[1], starting the war, and letting Germans bleed out across Europe. Even then, despite massive difference in size and population (~100M people that Stalin hasn&#x27;t murdered yet), barely.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Molotov%E2%80%93Ribbentrop_Pact" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Molotov%E2%80%93Ribbentrop_Pac...</a>