Woodrow Wilson and World War.
Interesting article from AT:
"Wilson presided over a segregated federal government. Wilson took this country into World War I, for which his pacifist policies left us almost wholly unprepared. He permitted black soldiers in the U.S. Army to be detailed to the French to plug holes in their lines, but he withheld his white troops.
Wilson's willful and one-sided negotiation of the Versailles Treaty led the U.S. Senate to reject both the treaty and the League of Nations. That international organization was one to which Wilson was willing to yield up too much of U.S. sovereignty. Wilson refused the Japanese request for a racial equality clause in the Versailles Treaty. Japan was our ally in World War I. Fearing the reaction of his segregationist allies in the U.S. Senate, Wilson rejected their plea. All the Japanese asked for could be found willingly stated in the American Declaration of Independence. The Japanese walked out of the Paris peace talks, their democratic government hopelessly compromised by allied blindness.
What fateful consequences followed."