The Battle for Stalingrad, which is the beginning of the defeat of the Nazis, starts in Nov. 1942. What are the Western Allies doing then? Invading North Africa, which I think was fairly irrelevant to the outcome of the war.
Wikipedia says that 80% of German military casualties were on the Eastern Front.
My impression from reading When Titans Clash is that the USSR could have won WWII without D-Day. Obviously, it would have taken much longer (and ended up with Soviet puppets all the way to the Atlantic Ocean).
I have found this most wonderful (if fairly lengthy) article, and thought you would enjoy having it brought to your attention.
It is so good, I think we should include it among the references in the "Politics is the Mind Killer" wiki page. But, before that, I submit it to you, and ask you: is there anything in this article that would warrant its exclusion from this site? I mean, besides the fact that it is about politics, and written by a notorious Social-democrat (And is that in itself grounds for exclusion?).