This book investigates the evolution of British imperial defence strategy and its role in maintaining the global order throughout a pivotal century. Kennedy examines the strategic decisions, military deployments, and diplomatic maneuvers that underpinned the British Empire's dominance from the mid-19th to the mid-20th century. The work analyzes how the perceived threats and the changing geopolitical landscape necessitated continuous adaptation of imperial defence policies.

Greg Kennedy's work is recognized for its comprehensive analysis of British imperial defence policy during a transformative period. The book is noted for its detailed examination of the strategic considerations and the practical implementation of defence measures across the vast British Empire. It offers a thorough account of how Britain sought to maintain its global influence through military and diplomatic means, providing valuable insights for students of military and political history.