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Archduke Ferdinand, the heir to the Austro-Hungarian Empire, was murdered June 1914 along with his wife by nationalist Gavrilo Princip.
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Germany declared war on Russia.
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Germany had been drawing up their plan for war, the Schlieffen plan, since 1897. It worked on the basis that they would be at war with Russia and France at the same time.
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The Battle of Marne was the First World War battle fought between 5 and 12 September 1914. It resulted in an Allied victory against the German Army.
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The Second Battle Ypres was fought April 22 to May 25, 1915 during World War I (1914-1918).
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The sinking of the Lusitania enraged Americans and caused the United States entrance into World War I.
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The Battle of Verdun was one of the major battles during the First World War on the Western Front. It was fought between the German and French armies, from 21 February – 18 December 1916.
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The Battle of Somme is famous mainly due to the loss of 58,000 British troops.
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The United States of America declared war on Germany in response to the sinking, by German U boats.
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On July 31, 1917, the Allies launch a renewed assault on German lines in the Flanders region of Belgium.
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The Second Battle of the Marne was the last major German Spring Offensive on the Western Front during the First World War.
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The Meuse-Argonne Offensive was one of the final campaigns of World War I.The Meuse-Argonne Offensive began on September 26, 1918, and ended with the conclusion of the war on November 11, 1918.
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The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers.
