These Nazi views of the superiority of the "Aryan race" and the inferiority of other races, especially the Slavic people, black people, "Gypsies" and, at the bottom of the scale, Jews became the basis for German national social policies once Hitler became Chancellor and then "Führer" of the country. They were also a major factor in Hitler's invasions of Poland and the USSR, and they resulted in the Holocaust and the killing of many millions of people, including 6 million Jews.