By the end of the First World War, Canadians made up roughly one quarter of the strength of the British Royal Air Force formed in April 1918. More than 8,000 Canadians served in the RAF and its predecessors, the Royal Flying Corps (RFC) and Royal Naval Air Service (RNAS). This photograph shows one famous Canadian fighter pilot, Squadron- Commander Raymond Collishaw (1893-1975), along with his British and Imperial pilots at Allonville, France, July 1918. 208 Squadron was formed in February 1914 as Number 3 Squadron, RNAS. The aircraft in the background are the famous Sopwith F.1 'Camel.' (Library and Archives Canada, PA-002792)