I haven't read all the thread, but this is taken out of context, IMHO.
Buchanan was on Imus this AM, and his premise was that yes, England, France, declared war on Germany when Hilter took over Poland, and the two countries had declared to defend Poland, but had no way to do so, or probably no intension to do so. This drew all powers into the war.
But at the end of WWII when the territory was divied up, Hilter was dead, the western European counties were occupied by western troops, so they retained their sovereignty, but,
Stalin, who had made nicey-nice with Roosevelt and Churchill, occupied all of the eastern European countries, and in the spoils of war annexed them with the motherland. Thus, in effect Stalin won WWII; as Russia walked away with all this new territory, which the west was unwilling to declare war against Russia in 1945, to wrest control from Stalin, forcing the removal of his troops.
I believe that Buchanan's comments are quite insightful.