In the corridors of the Vatican on the eve of World War II, American Catholic priest Joseph Patrick Hurley found himself in the midst of secret diplomatic dealings and intense debate. Hurley’s deeply felt American patriotism and fixed ideas about confronting Nazism directly led to a mighty clash with Pope Pius XII. It was 1939, the earliest days of Pius’s papacy, and controversy within the Vatican over policy toward Nazi Germany was already heated. This groundbreaking book is both a biography of Joseph Hurley, the first American to achieve the rank of nuncio, or Vatican ambassador, and an insider’s view of the alleged silence of the pope on the Holocaust and Nazism. Drawing on Hurley’s unpublished archives, the book documents critical debates in Pope Pius’s Vatican, secret U.S.-Vatican dealings, the influence of Detroit’s flamboyant anti-Semitic priest Charles E. Coughlin, and the controversial case of Croatia’s Cardinal Stepinac. The book also sheds light on the powerful connections between religion and politics in the twentieth century.

[God’s Diplomats is] a mix of impartial description and informed opinion. Not everyone will agree with how different issues are framed, or how different figures are portrayed. But what certainly cannot be argued with is the fact that Gaetan has given a gift not only to foreign policy practitioners, but also to American Catholics. You will not find a book on Church diplomacy as accessible, comprehensive, and faithful, as God’s Diplomats. It is a must read for anyone interested in understanding the Vatican’s diplomatic priorities better — and especially why they don’t always align with America’s. ― National Catholic Register Using inside sources and extensive field reporting about the secretive, high-stakes world of international diplomacy, Vatican reporter Victor Gaetan takes readers to the Holy See to explicate Pope Francis's diplomacy, show why it works, and to offer readers a startling contrast to the dangerous inadequacies of recent U.S. international decisions.

The heart-pounding history of how Pope Pius XII -- often labeled "Hitler's Pope" -- was in fact an anti-Nazi spymaster, plotting against the Third Reich during World War II. The Vatican's silence in the face of Nazi atrocities remains one of the great controversies of our time. History has accused wartime pontiff Pius the Twelfth of complicity in the Holocaust and dubbed him "Hitler's Pope." But a key part of the story has remained untold. Pope Pius in fact ran the world's largest church, smallest state, and oldest spy service. Saintly but secretive, he sent birthday cards to Hitler -- while secretly plotting to kill him. He skimmed from church charities to pay covert couriers, and surreptitiously tape-recorded his meetings with top Nazis. Under his leadership the Vatican spy ring actively plotted against the Third Reich. Told with heart-pounding suspense and drawing on secret transcripts and unsealed files by an acclaimed author, Church of Spies throws open the Vatican's doors to reveal some of the most astonishing events in the history of the papacy. Riebling reveals here how the world's greatest moral institution met the greatest moral crisis in history.

The first one-volume history, based on the Vatican archives, of Pope Pius XII and his dealings with the contesting powers and with the Jews during World War II.

Vatican Diplomacy at the United Nations : A History of Catholic Global Engagement