With the size of Russia, the Germans already exceeded their ability to resupply their frontline;- they'd never have got much further than they did, and isn't it historically fascinating that these types like Napolean and Hitler seem doomed to repeat failures.... Both Germany and Russia ended up throwing young n' old into the fray... makes y'wonder about a Power far bigger than all this 'earthly' stuff, the way things turned out...
- Personally, the BoB was I believe, the more important, as by August 1940, Britain faced Germany's 2,600 aircraft with 52 Fighter Sqn.'s with 660 aircraft and 1,300 pilots.....At a cost of 510 fighter pilots killed, winning the BoB was decisive to the outcome of the War......