BB: accept your nations history, accept your nations guilt.
Napoleon Bonaparte once stated that "official" history is bunk. It was always written by the winners, so it is beneficial, before making your own judgment to try to see the viewpoints from both sides in the conflict and get as much information from as many diverse sources as possible. Forget what you saw in Hollywood propaganda movies. Instead of taking so called facts for granted, of incomplete history you learned in school, do your own research, dig into books and autobiographies of intellectuals who actually lived during the time period. You might find some interesting details and facts. Because a certain elite group of people who own most of the media and the publishing will only allow you to see what they want you to know.
For example, how many Americans have even heard of the sad fate of Ezra Pound.