More than 350 illustrations in this chronological book provide a substantial reference to the day-by-day conduct of all facets of the First World War. A truly global conflict - it was fought in Europe on Balkan, Eastern, Italian and Western fronts, in Africa and the Middle East, in Turkey and Mesopotamia; on land, at sea, and in the air. It was also a war that saw many military innovations including the major use of gas, first intensive aerial attacks, the advent of tanks onto the battlefield, and protracted submarine warfare.