How can prejudice lead to war

A racial prejudice has the greatest potential in letting people to go into a war. "During the Spanish American war - blacks and whites fought alongside each other in American uniform - it was the first time that a little racial prejudice had been shown by American leaders. As the war started, large massacres of Jews took place" and "Pogroms (racial riots) were also encouraged by the Nazis, especially early in the war before the larger mass killings began"shows that racial prejudice can lead to having a civil in that country just like to Spanish-American and the Jews. Thus, racial prejudice had the greatest potential in causing any war.