if German invade Britain (operation sealion), they cannot do Operation Barbarossa (invasion of Balkans, Greece, Russia, Ukraine, and continue to middle east)
Not so much men and planes.
Anyway, the FockeWulf FW190A-4 fighter-bomber was not ready for any of boot operation. And they don't have so much FW200 for cover the extreme north objectives over Britain (factory and airfields) , and this include his escort, that need to be Bf109 E-7/Bf109 F-2 and FW190.
Another, ... German never recognized Finland like a allied (at least, to 1941), big mistake. This people are a very good fighters and excellent organized and good Ethic too.
http://en.wikipedia.org/wiki/Operation_Sea_Lion
http://en.wikipedia.org/wiki/Operation_Barbarossa
pleace, traduce this site, is in spanish
http://www.militar.org.ua/foro/what-...27395-810.html
have a nice day
zacarias kandrachoff