In its racial categorisation, Nazism viewed what it called the Aryan race as the master race of the world—a race that was superior to all other races.[175] It viewed Aryans as being in racial conflict with a mixed race people, the Jews, whom the Nazis identified as a dangerous enemy of the Aryans. It also viewed a number of other peoples as dangerous to the well-being of the Aryan race. In order to preserve the perceived racial purity of the Aryan race, a set of race laws was introduced in 1935 which came to be known as the Nuremberg Laws. At first these laws only prevented sexual relations and marriages between Germans and Jews, but they were later extended to the “Gypsies, Negroes, and their bastard offspring”, who were described by the Nazis as people of “alien blood”.[176][177] Such relations between Aryans (cf. Aryan certificate) and non-Aryans were now punishable under the race laws as Rassenschande or “race defilement”.[176] After the war began, the race defilement law was extended to include all foreigners (non-Germans).[178] At the bottom of the racial scale of non-Aryans were Jews, Romanis, Slavs[179] and blacks.[180] To maintain the “purity and strength” of the Aryan race, the Nazis eventually sought to exterminate Jews, Romani, Slavs and the physically and mentally disabled.[179][181] Other groups deemed “degenerate” and “asocial” who were not targeted for extermination, but were subjected to exclusionary treatment by the Nazi state, included homosexuals, blacks, Jehovah’s Witnesses and political opponents.[181] One of Hitler’s ambitions at the start of the war was to exterminate, expel or enslave most or all Slavs from Central and Eastern Europe in order to acquire living space for German settlers.[182]

https://en.wikipedia.org/wiki/Nazism

and back we go