On July 14, 1919, French, British and American troops paraded down the Champs-Élysées in Paris, celebrating their triumph in the bloody trenches of World War I. But one American regiment was missing from the Allied ranks. It hadn't been sidelined by injury or a poor service record. In fact, the 369th Infantry was one of the most decorated regiments in the war. The men -- nicknamed the Harlem Hellfighters -- were excluded for one simple reason: they were black.