Church of Spies

Mark Riebling's "Church of Spies: The Pope's Secret War Against Hitler" presents a meticulously researched account of the Vatican's covert resistance activities during World War II, challenging long-held assumptions about Pope Pius XII's wartime conduct. The book draws on declassified intelligence documents, personal correspondence, and testimonies to reveal a network of Catholic clergy and laypeople who worked against the Nazi regime, often with the knowledge and tacit support of the Holy See.

The narrative centers on several key figures who operated within what Riebling characterizes as a Vatican-connected resistance network. Among them was Josef Müller, a Munich lawyer and devout Catholic who served as an intermediary between German military conspirators and the British government through Vatican channels. Müller's efforts to facilitate communication between German resistance members and Allied powers form a central thread in the book, demonstrating the complex diplomatic maneuvering that took place behind closed doors.

Riebling also examines the role of figures such as Hans Oster and Wilhelm Canaris of the Abwehr, German military intelligence, who maintained contacts with Vatican officials while plotting against Hitler. The book details how these individuals used their positions to gather intelligence, warn intended victims, and coordinate with potential allies abroad. The Vatican's involvement in these activities, according to Riebling's research, extended beyond mere passive knowledge to active facilitation of communications and meetings.

The author devotes considerable attention to the moral and strategic dilemmas faced by Pope Pius XII, born Eugenio Pacelli. Riebling argues that the Pope's public silence on Nazi atrocities, which has generated decades of controversy, must be understood within the context of his behind-the-scenes activities. The book suggests that more vocal denunciations might have compromised the safety of resistance networks and endangered Catholics living under Nazi occupation. This interpretation adds nuance to historical debates about Pius XII's legacy, though it remains one perspective among several scholarly views on this contested subject.

The strength of "Church of Spies" lies in its detailed reconstruction of specific operations and communications. Riebling walks readers through clandestine meetings, coded messages, and narrow escapes, drawing on intelligence archives that became available only decades after the war. The book describes how Vatican diplomatic pouches and neutral territory provided crucial cover for resistance communications, and how priests and bishops served as couriers and safe-house providers.

The narrative also explores the fate of various conspiracy attempts against Hitler, including plots that involved Catholic officers and civilians. Riebling documents how information flowed through ecclesiastical channels, sometimes reaching Allied intelligence services. The tragic outcomes of many conspirators, including their eventual capture and execution by the Gestapo, underscore the genuine dangers faced by those involved in resistance activities.

However, the book's thesis remains debatable within historical scholarship. While Riebling presents substantial evidence of anti-Nazi activities by individual Catholics and some Vatican officials, the extent of direct papal involvement and authorization continues to be examined by historians with access to various archival sources. The book makes a compelling case for reevaluating certain assumptions, yet readers should recognize that historical interpretation of this period remains complex and multifaceted.

The writing style is accessible and engaging, making intricate diplomatic and intelligence history comprehensible to general readers. Riebling employs a narrative approach that reads more like a thriller than a conventional history, which helps maintain interest through dense material involving multiple players and plot lines. The extensive endnotes demonstrate serious research, providing sources for those who wish to explore the evidence further.

"Church of Spies" makes a significant contribution to World War II historiography by highlighting networks and activities that have received less attention in popular accounts of the period. Whether or not readers accept all of Riebling's conclusions about papal policy and motivation, the book successfully illuminates the experiences of Catholics who risked their lives opposing Nazism. It serves as a reminder that wartime resistance took many forms and that institutional responses to totalitarianism involved difficult calculations about how best to protect lives and oppose evil.

For readers interested in World War II history, Vatican diplomacy, or the German resistance movement, this book offers valuable insights and raises important questions about how we assess moral leadership during extreme circumstances. The documentation of previously obscure resistance efforts alone makes it a worthwhile addition to the literature on this period.