No amount of foresight could have prepared the world of 1914 for the global effects of the Great War. Millions died, and the patterns of social, economic, and political life throughout the world were irrevocably changed. This A-to-Z dictionary is a uniquely comprehensive work of reference that builds a clear overview of the war and its effects worldwide. It contains over 1500 cross-referenced entries on campaigns, battles, soldiers, weapons, strategy and tactics for every major theatre and front of the war. The text is supported by maps and detailed chronologies.