Nations also go to war for ideological reasons: they have certain belief systems that lead them to hold prejudice and other hostile feelings toward nations with different belief systems. Religion is a very important ideology in this regard. Historically and also today, nations in the Middle East and elsewhere have gone to war or are otherwise in conflict because of religious differences. Although the causes of World War II are complex, Hitler’s effort to conquer much of Europe stemmed at least partly from his belief that Aryans (Germans and other Europeans with blond hair and blue eyes) were a superior species and non-Aryans were an inferior species (Bess, 2008). [18]
