Klaus allow me to respond to your comments here also, over and beyond Jim's own excellent input. I couldn't agree more that Hitler's poor estimation of the Slavs - and the Russians in particular - was a defect in his thinking. But as in everything, it's a bit more complicated than what it first appears. The Slavs had an abundance of land, the land Hitler deemed necessary for his intended lebensraum. As he saw it, far more land than they could possibly manage, or were managing. The Russians in particular were extremely behind the times by almost any gauge, in fact almost medieval in their ways (although militarization and industrialization had been ratcheted up under Lenin and Stalin). The Slavic Russians were also under the yoke of a murderous form of Marxism, where millions of their own - and many other ethnic groups from across this newly hatched Soviet federation - were being plowed under or marched off to gulags. The Communist Revolution had already decimated the Volga German Russians as "counter revolutionaries". Because of their German heritage, they were branded "Enemies of the Government" and called "Kulaks". This was years before Hitler had his war machine in place and on the roll. [see more below]
So how else can you put it? There was BAD BLOOD between the National Socialists and the Communists. As Hitler had long since vowed to destroy this world-wide Marxist revolution, they were sworn enemies, and a showdown between these two political systems was pretty much inevitable. Hitler and his brownshirts had already crushed the Communist strongholds in Germany itself, after years of pitched battles in the streets. Germany came very close at one point to being declared a Soviet itself!
How would the Slavs have been treated as time went on under these new Germanic overlords? Hard to say of course, but it could be argued it couldn't get much worse than what they were already experiencing at the hands of the Marxists, and the Czars before that!
It can't be forgotten that the Romanians and Hungarians were allies of Hitler in all of his campaigns to the east. Those nations were (are) Slavic the last time I looked. Romania, Hungary, Ukraine, Byelorussia, Serbia - again mostly Slavic - all produced substantial Waffen-SS legions or divisions for the German war effort. These volunteers, regardless of nationality, were not treated as inferiors; they were judged on their ability and performance as soldiers. There were even White Russian, Cossack and Croat Moslem units serving as auxiliaries or irregulars to the Wermacht. Throughout the course of the war, over a million volunteers are believed to have joined up from across the span of Europe to do battle in the NS ranks. Most of these non-German recruits were either staunch anti-communists, Pan-Europeans (or ethnic Nationalists), or simply admirers of Germany and its National Socialist government.
Just as Jim noted, the history of wars are written by the winners. And much of the truth (or "unpleasant" facts) unfortunately gets lost or is conveniently dismissed in the accounting. Those who often dig up and try to publish these little 'unpleasantries' are invariably branded "revisionists", generally with the implication that they are up to no good and want to "change" history. How sad that so many facts and overlooked details don't always cooperate with the "accepted" version. And that so many folks don't seem to care, in America and elsewhere. In Germany today, revisionism in almost any form would be considered a crime, and you could be hauled before a court simply for speaking such things in a public place. I find that odd to say the least, though we in this country aren't too far behind (truth be known).
Jb
PS. Underdogs does not translate well here. It was 'submenschen' you were referring to of course, thus literally "sub-humans".