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US troops in a line / WWI / 1917
World War One / USA declares war on Germany on 6 April 1917.

Soldiers of the 27th Division of the New York National Guard on their way to a training camp.

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World War I: Mobilisation
As soon as war was declared, men were called to fight for their country. We present a small selection of images of the mobilisation of troops in Germany and the United Kingdom, as well as the later mobilisation of American troops.

Photo albums from the First World War


World War I: Key figures


World War I: Assassination


World War I: Uniforms


World War I: Ground Warfare


World War I: Aerial warfare


World War I: Naval warfare


World War I: Women in Wartime


World War I: Armistice


World War I: Aftermath


World War I in paintings

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