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He was killed in Sarajevo Gavrilo Princip and one of a group of six Bosnian Serb assassins . It started World War 1.
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Austria-Hungary seeks German support for a war against Serbia. Germany gives them support.
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One month after Archduke Franz Ferdinand and his wife were killed by a Serbian nationalist in Sarajevo, Austria-Hungary declares war on Serbia, effectively beginning the First World War. They ask for ssupport by Germany.
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Two days after Germany declared war on Russia they declared war on France. They won a lot of battles in France until the plan they came up with backfired. The didn't send a lot of troops to Russia because they thaught it would be a easy win but they thought wrong Russia started winning the war so all the troops that was in France had to retreat to Russia.
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Asquith declared war on the German Empire on August 4 in response to the demands for military passage that were forced upon Belgium by Germany. The expiration of Britain's own ultimatum at 11 p.m. that day. They was part of the Triple Entente with France and Russia.
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Austria-Hungary declares war on Russia and Serbia declares war on Germany. Declaration presented at St. Petersburg.
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U.S. President Woodrow Wilson announces the U.S. will remain neutral. Belgian Army retreats from the Gette on Antwerp. Mulhouse again taken by French forces.
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The Germans attack the Russians in East Prussia. The attack is a failure in addition to being a violation of the Schlieffen Plan.
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With Japan's European allies heavily involved in the war in Europe, Japan sought further to consolidate its position in China by presenting the Twenty-One Demands to Chinese President Yuan Shikai in January 1915. If achieved, the Twenty-One Demands would have essentially reduced China to a Japanese protectorate, and at the expense of numerous privileges already enjoyed by the European powers in their respective spheres of influence within China.
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They entered the war cause of the attack on american ships. The german uboats sunk Lusitania.
