The Nazis were a political group of fanatical far-right racist Germans that was founded out of the current of the far-right racist völkisch German nationalist movement in Post-World War I Germany. The party took control of the German government during the 1930's and led by its last long-term leader, Adolf Hitler. They established a totalitarian regime known as the Third Reich. The Nazi Party was responsible for instigating World War II. Under Nazis ideology, the party advocated that the Aryan race were the superior race on earth. To maintain the purity and strength of the Aryan race, the Nazis sought to exterminate or impose exclusionary segregation upon "inferior races": Jews, Romani, blacks, homosexuals, the physically and mentally disabled, Jehovah's Witnesses and political opponents. The persecution reached its climax when the party and the German state which it controlled organized the systematic murder of approximately six million Jews and six million other people from the other targeted groups, in what has become known as the Holocaust.