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Assassination of Archduke Franz Ferdinand
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Austria-Hungary declares war on Serbia, beginning World War I.
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Germany’s Invasion Sparks Widespread Allied Resistance
Germany invades Luxembourg and Belgium. France invades Alsace. British forces arrive in France. Nations allied against Germany were eventually to include Great Britain, Russia, Italy, Australia, New Zealand, South Africa, Rhodesia, Romania, Greece, France, Belgium, United States, Canada, Serbia, India, Portugal, Montenegro, and Poland. -
Austria-Hungary invades Russia.