The Encyclopedia of 20th Century Warfare by Noble Frankland is an illustrated reference book that surveys the major wars, military campaigns, and technological developments of warfare throughout the 20th century. It covers conflicts from the First World War through to the Cold War era, explaining key battles, strategies, weapons systems, and the evolution of military doctrine across land, sea, and air forces. Written in an accessible, encyclopaedic format, the book combines concise historical summaries with maps and photographs to help readers understand how modern warfare developed and how global conflicts shaped the century.