Book excerpt: "The Origins of the Second World War explores the reasons why the Second World War broke out in September 1939 and not sooner, and why a European war expanded into world war by 1941. Richard Overy argues that this was not just 'Hitler's War' but one that had its roots and origins in the decline of the old empires of Britain and France and the rise of ambitious new powers in Germany, Italy and Japan. Any explanation of the outbreak of hostilities must be multinational in scope taking into account the basic instability of the international system that had still not recovered from the shocks of the Great War. In this third edition: The role of Italy in the approach to war has been re-evaluated; Overy addresses recent revelations about Soviet policy in the 1930s, particularly exploring Soviet military planning and preparations; Arguments about Chamberlain and his policy of appeasement are rethought and reassessed. This new edition has now been completely overhauled, updated, expanded and reset. With a comprehensive documents section, colour plates, Guide to Who's Who, and a Chronology, The Origins of the Second World War will provide an invaluable introduction to any student of this fascinating period."--Page 4 of cover