The Canadian National Vimy Memorial is a war memorial site in France dedicated to the memory of Canadian Expeditionary Force members killed during the First World War. It also serves as the place of commemoration for Canadian soldiers of the First World War killed or presumed dead in France who have no known grave. The monument is the centrepiece of a 100-hectare (250-acre) preserved battlefield park that encompasses a portion of the ground over which the Canadian Corps made their assault during the initial Battle of Vimy Ridge offensive of the Battle of Arras.

The military history of Canada during World War I began on August 4, 1914, when the United Kingdom entered the First World War (1914–1918) by declaring war on Germany. The British declaration of war automatically brought Canada into the war, because of Canada's legal status as a British Dominion which left foreign policy decisions in the hands of the British parliament. However, the Canadian government had the freedom to determine the country's level of involvement in the war. On August 4, 1914, the Governor General declared a war between Canada and Germany. The Militia was not mobilized and instead an independent Canadian Expeditionary Force was raised.