And the motivation was, in the Fuhrer own words none the less (!), Lebensraum in the east (and enslaving the slavs there while doing it) and gwtting rid of the made up jewish-bolshevik conspirancy by killing both groups. Hard to accept, I know, but none the less true.

Actually the only mistake the Allies might have made, might have because it is hindsight, is not invading Germany in the West while the Wehrmacht was busy in Poland. History is history so. Seeing the causes of WW2 so, and the motivation of the Nazis, as anything else than what they are ia something I will leave unadressed so.