Quote from site, " Canada made a significant contribution to the First World War, which is remembered particularly in the context of battles such as the Somme and Vimy, but also through the contribution of individuals, such as the flying aces Billy Bishop and William Barker. However, the scale of Canada’s support and involvement in the war was wider even than these monumental events and efforts suggest, just as it was in many European countries. For many Canadians the First World War was a formative moment, a time when the British Dominion moved away from being part of an Imperial Federation and began to realise its own strength and independence.
This important stage in Canadian history, and the country’s contributions to the global history of the First World War, is particularly well shown in photographic records held by the British Library. ."