First published in 1996. The First World War was the single most important event of the twentieth century. This volume concentrates on non-U.S. aspects of the conflict. Organized alphabetically, its more than 600 detailed entries offer information and insight on such subjects as the causes of the conflict, major battles and campaigns, weapons systems (including military aviation, chemical warfare, the submarine, and the tank), and the terms of the peace. Some 350 biographies provide information on the roles played in the conflict by generals, admirals, and civilian leaders. There are also biographies of individuals who were shaped by the war, such as Charles De Gaulle, Adolf Hitler, Benito Mussolini, and Joseph Stalin; essays on each of the countries involved in the conflict; new appraisals of such subjects as military medicine and artillery tactics; and essays on such diverse subjects as art, literature, and music in the war. Each entry has references for additional reading, and a subject index provides easy access. The volume is an excellent reference source for scholar and neophyte alike.