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Consisted of Germany, Austria-Hungary, and Italy.
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Consisted of France, Britain, and Russia.
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Also known as the Annexation crisis, occured when Austria-Hungary announced the annexation of bosnia and Herzegovina. Russia, the outoman Empire, britain, italy, Serbia, Montenegro, Germany and France took an interest in these events.
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Serbian nationalist Gavrilo Princip stepped from the crowd and shot the Archduke and his wife Sophie.
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Germany invaded Belgium, following a strategy known as the Schlieffen Plan. This plan called for a holding action against Russia, combined with a quick drive through Belgium to Paris; after France had fallen, the two German armies would defeat Russia. As German troops swept across Belgium, thousands of civilians fled in terror.
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A U-boat sank the British liner Lusitania off the southern coast of Ireland. Of the 1,198 persons lost, 128 were Americans
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the British suffered 60,000 casualties the first day alone. Final casualties totaled about 1.2 million, yet only about seven miles of ground changed hands.
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Because the assassination was commited by Serbs, Austria declares war on Serbia.
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Telegram from the German foreign minister to the German ambassador in Mexico that was intercepted by British agents. The telegram proposed an alliance between Mexico and Germany and promised that if war with the United States broke out, Germany would support Mexico in recovering “lost territory in Texas, New Mexico, and Arizona.”
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Germany went back on America's wish to be neutral by using their policy of unrestricted submarine warfare.
