I don't think its so much where Germany lost the war, but why IMHO they did lose. It was basically a circle. Germany invaded Russia-it could have been a successful venture, but they were too busy in other theatres trying to be like the old Caesars. Instead they shouldve concentrated on one area and then branched out.
I think that Germany lost the war whey got personal with Britain. Instead of bombing London,Coventry and basically just conducting terror raids on England, they should have kept the pressure on RAF Fighter Command and tehn launched 'Sealion'-this move wouldve shown the world that Hitler meant business and would have kept opposition down.
Hitler just wanted to be vicious, not strategic.

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"GARRY OWEN"-Traditional war-cry of the US 7th Cavalry.
"CURRAHEE"-War-cry of the US 506th PIR.
"Everybody thinks that they are going to get the chance to punch some Nazi in the face at Normandy-and those days are over, they are long gone"-Lt Chris Burnett