mobilization: Quick Facts

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Photos and Videos

Black-and-white illustration of young Russian men drawing lots for conscription, with officials overseeing the process and anxious families watching from the foreground.

Causes and start of World War I

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Key People

James F. Byrnes

James F. Byrnes

American jurist

Louis Alexander Mountbatten

Louis Alexander Mountbatten, 1st marquess of Milford Haven

British admiral

Louis IX of France (St. Louis), stained glass window of Louis IX during the Crusades. (Unknown location.)

World Wars