HH:
The war in the air wasn't really decisive once the Germans invaded Russia
Bit of a sweeping generalisation there, HH. I would contend that without the war in the air, the German invasion of Russia could well have been decisive in their favour. As it was it was a close enough run thing. Yes the distances and weather worked in Russia's favour, but so did massive western military supplies and reduced German ones culminating in the strategically decisive Battle of Kursk. Quite a lot of that could be put down to the western war in the air, don't you think?