The war of 1914-1918 was a military, political and social disaster. No other war changed the map of Europe so dramatically and more than 15 million people were killed. The dramatic political and social changes of the period were mirrored in the uniforms of the armed forces, and the contrast between pre-war Europe and 1919 could not be more apparent. This unique illustrated book charts the developments in military uniform in fascinating detail: how the remaining reds and blues of 1900 soldiers died out in preference to browns, greys and greens. It also tracks the evolution of hardware and ammunition. Evocative photographs of the struggle and stunning illustrations of the uniforms show in detail the changes, reforms and modifications of all the major powers, Great Britain, France, Russia, Germany and Austria-Hungary. This unprecedented volume is an incredible visual study of the uniforms of a pivotal period of military history, and of its context.