Canadians digging in and waiting for the next wave to pass them and go forward

Canadian troops and a tank on the Western Front, during World War I. This photograph gives some sense of how treacherous and fraught fighting in World War I could be. The Canadian soldiers in the picture look very exposed: the long grass will obscure German machine-gunners from view but there are no obvious natural barriers to protect the Canadians from speculative machine gun fire. The small dug-…