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Gavrilo Princip assassinates Franz Ferdinand.
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From begining to end the world had never seen a war like this, World War 1.
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Austria-Hungary declares war on Serbia. August 2, 1914 - Ottoman Empire (Turkey) and Germany sign a secret treaty of alliance.
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The first battle of Marne begins
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German troops poured into Belgium and France on. Germans pushed the battle back to Marne.
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The length of the siege of Liège may have delayed the German invasion of France by 4–5 days
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Poison Gas used for the first time in war
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Tanks were used for the first time in the war.
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The battle of Verdun begins
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First World War on the Western Front between the German and French armies
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British forces suffereed some 60,000 casyakties in a single day. This four-month long battle left more than 1 millions dead.
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The battle of Somme Begins
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also known as the Somme Offensive, was a battle of the First World War fought by the armies of the British and French empires against the German Empire
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U.S. troops join the fighting in Europe
