Vimy Ridge, 1917 In early 1917 Vimy Ridge, one of the most important features on the Western Front, was considered impregnable. However, in a spectacular victory, the four Divisions of the Canadian Army Corps, under Lieutenant-General Sir Julian Byng, took almost the entire ridge in a day. This book examines every aspect of the secret to their success: preparation. The author shows how effective observation, accur... Full description