U-boats hardly contributed to war in Russia?
Here is your quote: I'm repeating myself to the point of puking on my own shoes, untill 1943 when Germany was effectively beaten at Kursk it was fighting on one front.
The fact is Germany was fighting in a number of different theaters... Period...
Your source implies that Axis forces melted by more than half a milion which is...a joke? I understand there can be a huge disparity in claims but lets not quote extremes?
Why don't you cite your sources?
Comparative Strengths of Combat Forces, Eastern Front, 1941-1945:
22 June 1941
Germans: 3,050,000 (Eastern Front) 67,000 (Northern Norway) 500,000 Finns & 150,000 Rumanians.
Table C, page 302
When Titans Clashed - David Glantz & Jonathan House