National Socialism
National Socialism refers to the ideology of the Nazi Party of Germany from 1920-1945, centered around the primacy of a mythic Aryan people whose destiny would be secured by a unified authoritarian ethnostate. As envisioned by Adolf Hitler and the Nazi Party, the Aryan race did not include all white people, but rather those ‘tribally related to the German blood,’ rejecting Jews, Slavs and, to a lesser extent, southern Europeans.
Most contemporary uses of the term do not refer to the ideology of the original Nazi Party, but rather to various post-World War II neo-Nazi ideologies and movements.