During the First World War, the Canadian Army authorized the formation of 260 infantry battalions to serve in the Canadian Expeditionary Force. Of these, only a small fraction of these battalions ever reached France to serve on the front lines. The remaining battalions, most often upon arrival in England, were broken up and primarily absorbed into a reserve battalion. In addition to the numbered battalions were two named battalions, and several regiments of Canadian Mounted Rifles were converted to infantry battalions and served in the Canadian Corps.

Those battalions in bold type served in the field.

The 30th Battalion of the Canadian Expeditionary Force (CEF) embarking on the SS Princess Mary at Victoria, British Columbia en route to the war in Europe -- February 14, 1915.

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