The main ideology of National Socialism in Germany, commonly known as Nazism, was based on a combination of extreme nationalism, racism, and authoritarianism. Founded by Adolf Hitler and the National Socialist German Workers' Party (NSDAP), this ideology promoted the belief in the supremacy of the "Aryan" race and sought to create a totalitarian state. It rejected democratic principles and emphasized militarism and expansionism, leading to aggressive foreign policies and the implementation of genocidal practices during the Holocaust. National Socialism revitalized German society through propaganda and state control but ultimately caused immense suffering and devastation during World War II.