Nazism is a political ideology that emphasizes the supremacy of a particular race. Specifically, Nazism asserts the superiority of the Aryan race, which was believed by its adherents to be a master race that was destined to rule over all other races. This ideology also involved extreme nationalism and authoritarianism, and was characterized by anti-Semitic and anti-communist beliefs. The Nazi party, led by Adolf Hitler, rose to power in Germany in the 1930s, and their reign resulted in the Holocaust and other atrocities during World War II.