The term used for non-Aryan races was "untermenschen" - sub-humans. This included Slavs, Jews, Gypsies and other "undesirables". For a chilling account of the process of racial determination, watch Kenneth Branagh in "Conspiracy", the story of the high level meeting organized and chaired by Adolph Eichmann and Reinhard Heydrich. The meeting was held at the Wannsee estate near Berlin in January of 1942.
No record or notes were to be taken, but that proved impossible to prevent. The movie is based on the only surviving record. The upshot was the formulation of the "Final Solution" to the Jewish problem - annihilation of the Jewish people in Europe. Other non-Aryans were just collateral victims, caught up in the Nazi net, victims of a state sanctioned genocide.
That a "civilized" nation like Germany could be the originator of such wholesale slaughter staggers the imagination. I've toured a concentration camp and the tour guide pointed out that we were not likely to see a song bird anywhere on the site. If we did, he wanted to know about it. he said that the place still had the pall of death about it and birds could detect it.
