After four bloody years, at 11:00 am on November 11, 1918, the guns fell silent as an armistice brought a stop to World War One. Or did it? The war between the Allies and Central Powers was over, but much of Europe, Asia, and the Middle East was racked by war for nearly five more years. Right- and left-wing revolutions, coups, civil wars, wars of national liberation, Imperial interventions, and anti-colonial resistance plunged societies into chaos and helped shape today’s world. From Syria to Siberia and Berlin to Baghdad, American, British, German, French, Russian, Turkish, and Arab soldiers fought and died – long after the War to End All Wars was “over.” In this talk, historian Jesse Alexander explains why World War One’s incomplete and messy ending(s) opened a Pandora’s Box of Imperial greed, national dreams, ideological extremes, and incredible suffering–despite and because of America’s arrival on the World Stage.