What if Nazi Germany hadn't attacked the USSR and they signed an 100 year co-operation treaty. According to wiki with the troops that wouldn't have been deployed on the russian front total to:
3.9 million (including reserve),
3,600 tanks,
4,389 aircraft
46,000 artillery pieces
This would mean that Germany would have all this extra force to deploy to North Africa, which surely would lead to a German victory under Erwin Rommel. (And so hence the collapse of Italy would never have happened). Germany by this point with all this extra force would be have crushed Egypt and slowely rampage through the Middle East, with all of those Oil Reserves
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So lets say for this scenario that the U.S.A , Britain and the rest of the commonwealth where at war with Nazi Germany.
What chance do you think the Allies (Remember not including the U.S.S.R) would have of invading Europe succsessfully and defeating Nazi Germany?, (Bearing in mind all this extra manpower they will have)
3.9 million (including reserve),
3,600 tanks,
4,389 aircraft
46,000 artillery pieces
This would mean that Germany would have all this extra force to deploy to North Africa, which surely would lead to a German victory under Erwin Rommel. (And so hence the collapse of Italy would never have happened). Germany by this point with all this extra force would be have crushed Egypt and slowely rampage through the Middle East, with all of those Oil Reserves

So lets say for this scenario that the U.S.A , Britain and the rest of the commonwealth where at war with Nazi Germany.
What chance do you think the Allies (Remember not including the U.S.S.R) would have of invading Europe succsessfully and defeating Nazi Germany?, (Bearing in mind all this extra manpower they will have)