I'm wondering what would have happened in World War II if Britain had surrendered to the Germans before Operation Barbarossa took place. Had this happened the Germans would have had to commit significantly less resources to protecting the coast of France and would not have to split their air force between bombing two fronts while they were on the offensive.
It might also be quite likely in this scenario that the role of the United States in the European theater would be extremely limited, with no natural ally from which to launch airstrikes and threaten an invasion on the Western front. Germany would also have to commit far less resources to defending their interests in Italy and Northern Africa.
Of course some resources would still have to be tied up in a token defense of the Western coast and to deal with local civilian resistance movements. Otherwise, if Germany was able to commit the vast majority of the military that was in the west and south to the war with Russia and did not have the RAF and American air forces bombing their cities and weapons production facilities continuously would Russia have still survived and eventually been able to push the Germans back?
It might also be quite likely in this scenario that the role of the United States in the European theater would be extremely limited, with no natural ally from which to launch airstrikes and threaten an invasion on the Western front. Germany would also have to commit far less resources to defending their interests in Italy and Northern Africa.
Of course some resources would still have to be tied up in a token defense of the Western coast and to deal with local civilian resistance movements. Otherwise, if Germany was able to commit the vast majority of the military that was in the west and south to the war with Russia and did not have the RAF and American air forces bombing their cities and weapons production facilities continuously would Russia have still survived and eventually been able to push the Germans back?