Canadian Expeditionary Force

The Canadian Expeditionary Force was the designation of the field force created by Canada for service overseas in the First World War. Units of the C.E.F. were divided into field formation in France, where they were organized first into separate divisions and later joined together into a single Canadian Corps within the British Army. Four divisions ultimately served on the front line, while a fifth was disbanded to reinforce the others. In the later stages of the war, particularly after their success at Vimy Ridge and Passchendaele, the Canadian Corps was regarded by friend and foe alike as the most effective Allied military formation on the Western Front. The Germans went so far as call them "storm troopers" for their great combat efficiency.