Causes of World War II-Vocabulary Key Terms & People example: Fascism Communism Joseph Stalin Totalitarianism Benito Mussolini Nazi Party Adolf Hitler Axis Powers Definition Use term in a sentence (use Google to find your terms and people) (must be your own original sentence) A political system that headed by a dictator that calls for extreme nationalism and often racism and no tolerance of opposition. The Fascist movement in Italy was led by Benito Mussolini.