The impact of World War I on the evolution of Canada's identity is debated by historians. While there is a consensus that on the eve of the war, most English-speaking Canadians had a hybrid imperial-national identity, the war's effects on Canada's emergence as a nation are complex. The Canadian media often refers to the First World War and, in particular, the Battle of Vimy Ridge, as marking "the birth of a nation." Some historians consider the First World War to be Canada's "war of independence." They argue that the war decreased the extent to which Canadians identified with the British Empire and intensified their sense of being Canadians first and British subjects second.