<p>World War I pitted Germany, Austria-Hungary and the Ottoman Empire against Great Britain, the United States, France, Russia, Italy and Japan. New military technology resulted in unprecedented carnage. By the time the war was over and the Allied Powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.</p>


World War I

World War I was fought from 1914 to 1918. Learn more about World War I combatants, battles and generals, and what caused World War I.

World War I: Causes and Timeline | HISTORY

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World War I ‑ Videos

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How a Wrong Turn Started World War I

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World War I Alliances