National Socialism (common English short form Nazism, German: Nationalsozialismus) was the ideology practiced by the Nazi Party and Nazi Germany. It is a unique variety of fascism that incorporates biological racism and antisemitism. Nazism was founded out of elements of the far-right racist völkisch German nationalist movement and the violent anti-communist Freikorps paramilitary culture that fought against the uprisings of communist revolutionaries in post-World War I Germany. The ideology was developed as a means to draw workers away from communism and into völkisch nationalism. Nazis' paramilitary organization, the Sturmabteilung (SA) engaged in violent attacks upon the movement's opponents, particularly communists, Jews, and social democrats. The Nazis promoted German territorial expansionism to be Lebensraum ("living space") for German settlers.