In the lands already occupied by German forces, S.S. chief Heinrich Himmler was preparing the ground for Hitler's new German order. Expelling the Jews from Germany was the first step, and this was carried out by laws and decrees beginning in 1933; the Germans would switch to outright force in 1939, as Jews were first deported en-masse to Poland, then walled into ghettos after the occupation began. By 1941, a policy crafted under S.S. general Reinhard Heydrich had changed expulsion for extermination in what was called "a final solution to the Jewish question" (''die Endlösung der Judenfrage''). The system of concentration camps was supplemented by the creation of specialized killing centers in the occupied countries, especially in Poland, where camps such as Auschwitz, Treblinka, Sobibor, and Belzac “processed” thousands of victims daily. Some six million Jews died during what was called the [[Holocaust]], as well as an additional five million Slavs, Gypsies, the handicapped, the aged, and many others that the Nazis considered “subhuman” in accordance with German racial policies.<ref>http://www.historyplace.com/worldwar2/riseofhitler/burns.htm</ref>
===Mass killing begins===
Hitler's genocidal plans were already uttered, such as speaking in 1922 (with Josef Hell) of: "cleansed of the last Jew!" in November 24 1938 (Himmler's Das Schwarze Korps) [[SS]] Newspaper: wrote of "complete annihilation," and Hitler on 30 January 1939 (Reichstag): "the annihilation of the Jewish race in Europe." The actual mass killing began right with Op. Barbarossa. Soon after the invasion, mobile killing units (''[[Einsatzgruppen]]'') began the mass murder of Soviet Jews.<ref>https://encyclopedia.ushmm.org/content/en/article/invasion-of-the-soviet-union-june-1941</ref> (All that before the 1942 Wannsee conference of course,<ref>[https://encyclopedia.ushmm.org/content/en/article/wannsee-conference-and-the-final-solution Wannsee conference], ''ushmm.org''</ref> to discuss and coordinate the implementation).
==Beginning of the end==