How many Russians died at Stalingrad or Kiev?
American would not have tolerated those losses.
And how long would it have taken us to march across Europe if the German troops killed in Stalingrade had been on the western front.
I am not saying the Russians “won the war” but it certainly would have been a different affair had they been turned to our side.
The Russians started the war when they signed the Non-Aggression Pact.