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Originally '''The Great War''', later ''First World War''' or '''World War I''', was waged primarily in [[Europe]] from 1914 to 1918, but spilled over into [[Africa]], the [[Middle East]], and the [[Atlantic Ocean|Atlantic]], [[Indian Ocean|Indian]] and [[Pacific Ocean|Pacific]] Oceans.

Originally '''The Great War''', later '''First World War''' or '''World War I''', was waged primarily in [[Europe]] from 1914 to 1918, but spilled over into [[Africa]], the [[Middle East]], and the [[Atlantic Ocean|Atlantic]], [[Indian Ocean|Indian]] and [[Pacific Ocean|Pacific]] Oceans.

On one side of the war were the [[Central Powers]]: [[Austria-Hungary]], [[German Empire]], [[Bulgaria]], and the [[Ottoman Empire]].  The major [[Allies]] consisted of the [[Britain|British]] and [[France|French Empires]], the Tsarist [[Russian Empire]] (until 1917), [[Italy]], [[Japan]], and after 1917 the [[United States]].   

On one side of the war were the [[Central Powers]]: [[Austria-Hungary]], [[German Empire]], [[Bulgaria]], and the [[Ottoman Empire]].  The major [[Allies]] consisted of the [[Britain|British]] and [[France|French Empires]], the Tsarist [[Russian Empire]] (until 1917), [[Italy]], [[Japan]], and after 1917 the [[United States]].