Alliances leading to World War I | The 20th century | World history | Khan Academy

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Learn about the military alliances that mired Europe in war. Created by Sal Khan.

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World history on Khan Academy: From the earliest civilizations to the modern world, geography, religion, trade, and politics have bound peoples and nations together — and torn them apart. Take a journey through time and space and discover the fascinating history behind the complex world we inhabit today.

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