This book investigates the various forms of resistance undertaken by individuals and groups against the Nazi occupation during World War II. Arthur Hugh Ward, drawing on extensive historical research, details the clandestine operations, acts of sabotage, and intelligence gathering that challenged the occupying forces. The work examines the motivations, risks, and impact of these resistance efforts across different occupied territories.

This work is recognized for its comprehensive overview of the resistance movements during World War II. It is often cited for its detailed research and balanced presentation of the complex and dangerous activities undertaken by those opposing Nazi rule. The book provides valuable insights into the human cost and strategic importance of these efforts, making it a significant contribution to the study of the period.