The guide describes the ground and operations covered by the British, French and US Expeditionary Forces deployed from France to the area North of Venice between November 1917 and Spring 1919. These Forces supported the Italians after their disastrous defeat at Caporetto and helped stem the Austrian and German onslaught. This is the first guide to the Allied contribution and the Piave Defence line. The guide also covers the rear areas - supply and repair services, training and recreation. It also describes the movement to Italy and subsequent service and care of the 16,000 British and 20,000 French horses and mules. The US contribution has never been adequately described before.