This work investigates the geopolitical landscape and diplomatic failures that culminated in the outbreak of the Second World War, analyzed from the perspective of four decades of hindsight. The author, Roy Douglas, utilizes his expertise in British political history to evaluate the decision-making processes of European leaders during the critical year of 1939. By examining the collapse of collective security and the shifting alliances of the era, the text provides a structured assessment of how the international order disintegrated into global conflict.

The text functions as a scholarly examination of pre-war diplomacy, offering a dense and methodical review of the political climate of 1939. Its focus on archival evidence and historical context suggests a work intended for students and researchers interested in the structural causes of the Second World War.