Learn more about WWI in Europe

Over 4.7 million men and women served in the American armed forces, 2.8 million of them overseas.

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Explore WWI activities that helped shape The American Century

American military success on the battlefields of Europe depended upon a dynamic effort at home.

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See how Americans participated in World War I

Overseas and on the home front, diverse Americans united in pursuit of victory.

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Discover unknown events and surprising stories from The Great War

World War I generated an amazing variety of enthralling stories and fascinating facts.

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The Poppy as a Symbol

When peace returned to the battlefields at the end of World War I, so too did a simple red flower – the poppy.

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