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Archduke Ferdinand is assasinated in Sarajevo.
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Russia mobilizes its vast army to invade Serbia
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Germany invades Belgium
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The Battle of Liege was the first battle of the war
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Attempt by the French Army to outflank the Germans
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The Germans begin artillery based attacks and the use of chemical weapons.
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A German submarine sinks the passenger liner Lusitania.
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British intelligence intercepted a telograph from Germany to Mexico asking for support and to attack America if Germany got in trouble.
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There were three battles fought around Yepres.
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After the Zimmerman Telograph Woodrow Wilson decides to get involved.
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Congress approves decleration of war against Germany.
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Congress approves a draft.
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The first full-scale offensive by the British.
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The Germans sign a peace treaty with the new Bolshevik government.
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The Battle of Cantigny is the first major American offensice of the war.
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U.S. Marine regiments attack Germany.
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The Battle of St. Mihiel begins when 300,000 American troops under the direct command of General Pershing filling themselves into the German lines.
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Kaiser Wilhelm abdicates, ending all German hope for a victory.
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An armistice is signed, ending war on the Western front.