This guide describes the ground and operations covered by the British, French and American Expeditionary Forces deployed from France to the area north of Venice between November 1917 and Spring 1918. 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. It also covers the rear areas - supply and repair services, training and recreation. The US contribution has never been adequately described before.