Between July 1914 and November 11, 1918, there was World War I. Over 17 million people, including over 100,000 American soldiers, would die by the war's end.
A world war is an international conflict in which most or all of the major powers of the world are involved.
After Archduke Franz Ferdinand of Austria was killed in 1914, World War I, commonly known as the Great War, started. His assassination sparked a war in Europe that raged until 1918.
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