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The Pope at War: The Secret History of Pius XII, Mussolini, and Hitler

Using Vatican files unsealed in 2020, Kertzer shows how Pius XII bargained in secret with Hitler and stayed silent about the murder of Europe's Jews, and why silence from the powerful is never neutral.

Table of Content

Most of us have stayed quiet at some point to keep the peace, and told ourselves that silence meant staying out of it. In The Pope at War, Pulitzer Prize-winning scholar David I. Kertzer shows how badly that belief can fail. Working from millions of Vatican documents unsealed only in 2020, he finds that Pope Pius XII had confirmation Germany was killing Jews on a massive scale, and kept it secret.

Most people remember Pius XII either as a hero to the Jews or as Hitler’s Pope. The files complicate both pictures, and they bring in a hidden player: a German prince who carried secret messages between the pope and Hitler. Kertzer’s argument is that Pius XII put the church’s future and a peace without justice ahead of everything, and that his silence, from a man with enormous moral authority, helped Hitler’s murders. What follows explains why he made each choice, and gives a sharper sense of the moment when keeping quiet turns into taking a side.

An old pope died days before he could publicly condemn fascism. What his successor did with that unfinished protest, in his very first weeks, told the world almost everything about the war years to come.

For decades, editors working for the Vatican scrubbed one thread out of the official record. When the original papers finally opened, they revealed a German prince, a private channel to Hitler and a bargain with a heavy price.

Invaded nations begged the pope for one clear word. He sent gentle telegrams once, then a dictator’s anger changed everything. His motives turn out to be neither cowardice nor friendship with Hitler.

While nations fell and civilians died, the pope found plenty to say in public. The subjects he picked, and a film he commissioned about himself, reveal what he believed his role truly was.

The pope finally condemned Axis atrocities, and was hurt when the world shrugged. His private requests to the Allies, and one fact he kept to himself, show what he was really guarding as the war turned.

In two frantic days, the pope managed to free more than 200 people from a Nazi roundup in Rome. What happened to the rest, and how he was remembered afterward, is the heart of the case against him.

The deepest finding in The Pope at War is about timing. Kertzer grants that silence and the pursuit of peace have their place. His argument is that between 1939 and 1943 that place did not exist. Whether anti-Semitism, pacifism or both kept Pius XII quiet, Kertzer finds the silence hard to forgive. Millions died on battlefields, in labor camps and in gas chambers while the man at the head of the world’s largest and strongest religious body said nothing, and no one can know what his voice might have changed.

So was he a hero or a villain? Kertzer allows that the answer depends partly on where you stand. With the unsealed files in hand, though, he concludes that whatever his motives, the pope helped Hitler’s killing by staying silent when speaking could have helped.

The lesson travels well beyond Rome. When someone with power over you asks for your silence, ask who gains from it. When you do speak, say it plainly and where it will be heard, never on page 24. And keep one image: the 200 converts walking free from the college building, and the train that carried more than a thousand others to Auschwitz. Protecting your own people does not excuse abandoning everyone else.

About this book

What is this book about?

Pope Pius XII is usually remembered in one of two ways: as Hitler's Pope, or as a quiet hero who protected Jews during World War II. The Vatican opened millions of previously unpublished documents about him in 2020, and David I. Kertzer used them to test both versions. What he found is a pope who wanted peace at almost any price and who saw the war as a passing storm the church had to outlast. The files expose a secret channel to Hitler through a German prince, Phillipp von Hessen, along with deals that traded the pope's public voice for promises Hitler broke. They also show that the pope had confirmation of the mass killing of Jews and kept it to himself, even as more than 1,000 Jews from Rome were sent to Auschwitz. Readers get a clear account of how each decision was made and why. They also get a hard lesson that reaches well beyond the Vatican: when someone with power stays quiet in the face of atrocity, the silence is itself a choice.

Book Information

Rating:

Genre:

History, Religion & Spirituality

Topics:

Geopolitics, Religion, War

Publisher:

Penguin Random House

Language:

English

Narrator:

Nora

First published:

June 7, 2022

Pages:

672

Length:

14 min 03 sec

Get the book:

Amazon

Who it's for

  • History fans wanting evidence

    History readers who want the evidence from the 2020 Vatican files behind the Hitler's Pope debate.

  • Weighing silence against complicity

    Leaders and professionals wondering when staying quiet to protect an institution becomes complicity.

  • Wanting the Vatican's side

    Readers of Holocaust and World War II history who want the Vatican's side of the story.

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About the Author

David I. Kertzer

David I. Kertzer, born in 1948, is the Paul Dupee Jr. University Professor of Social Science at Brown University, where he also teaches anthropology and Italian studies. He served as Brown's provost from 2006 to 2011. His earlier book on the Vatican and fascist Italy, The Pope and Mussolini, won the 2015 Pulitzer Prize for Biography or Autobiography, and The Pope at War continues that history into World War II.

Ratings & Reviews

Ratings at a glance

4.3

Overall score based on 233 ratings.

What people think

Listeners find the work to be thoroughly researched and meticulously documented, with one listener noting how it clears up mystery and disinformation. Additionally, the prose earns praise, and listeners view it as an essential read for the Christian community. In contrast, the narrative flow and pacing evoke varied responses, as some call it masterful while others have reservations. Furthermore, listeners have divided opinions regarding the book's emotional depth.

Top reviews

Tuck

Kertzer has truly outdone himself with this exploration of the Vatican's inner workings during the darkest years of the twentieth century. By utilizing newly released archives from 2020, he peels back the layers of myth surrounding Pius XII, revealing a man far more concerned with institutional preservation than moral clarity. The level of detail is staggering, particularly regarding the secret negotiations with Hitler’s representatives. Personally, I found the contrast between the timid Pacelli and his more outspoken predecessor, Pius XI, to be the most revelatory part of the narrative. The writing is lucid and engaging, though the sheer volume of diplomatic cables can occasionally feel overwhelming. It is an essential, if sobering, addition to the history of World War II that refuses to look away from uncomfortable truths.

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Suphan

As a practicing Catholic, this was a painful but necessary read. We often want to believe our leaders are beacons of courage, but the image of Pius XII presented here is one of deep-seated caution and, frankly, moral failure in the face of absolute evil. Kertzer’s research into the Church’s long-standing demonization of Jews and how it inadvertently fueled Nazi propaganda is gut-wrenching. The book is a must-read for Christians because it forces a reckoning with how institutional self-interest can eclipse the very Gospel it claims to protect. I was particularly moved by the stories of local clergy in places like Poland who begged for a word of support from Rome that never came. This isn't just a history book; it's a profound moral warning.

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End

The opening of the Vatican archives in 2020 changed everything we thought we knew about this era, and Kertzer is the perfect guide through that newly revealed landscape. This book clears up decades of mystery and disinformation regarding the 'Silent Pope.' Not gonna lie, seeing the evidence of how the Vatican prioritized protecting buildings and movies over human lives is disturbing. The narrative flows with the tension of a political thriller, even when discussing complex diplomatic maneuvers. Kertzer’s ability to weave together personal letters, official decrees, and secret meeting notes is masterful. It is a dense, carefully documented work that stands as a definitive rebuttal to those who have tried to sanitize this period of Church history.

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Bun

Deeply unsettling and masterfully documented. This book provides a searing look at how silence can be a form of complicity. Kertzer captures the atmosphere of wartime Rome perfectly, from the fear in the streets to the detached, almost clinical debates happening within the Vatican walls. The fact that Jews were being rounded up just a short distance from the Pope’s windows while he remained silent is an image that will stay with me for a long time. It’s a heavy book, both physically and emotionally, but the writing is so clear that it never feels like a chore to read. If you want to understand the intersection of faith, power, and the failure of leadership, this is the book you need.

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Sofia

Finally, we have a clear-eyed look at one of history's most debated figures without the traditional layers of Vatican PR. Kertzer’s 'The Pope at War' is a monumental achievement in historical research. The writing style is accessible enough for a casual reader but detailed enough for a serious historian. I was particularly fascinated by the accounts of how the Vatican tried to protect 'Catholic Jews' while essentially abandoning those who hadn't converted. It's a staggering look at the limits of moral authority when it is tempered by political pragmatism. Every page feels backed by a mountain of evidence. Whether you are a believer or a skeptic, this book demands your attention and challenges everything you think you know about the Church's role in WWII.

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Prapaiwan

The comparison between Pius XI and his successor, Pius XII, serves as the backbone of this fascinating historical account. While the former was willing to risk an encyclical against Nazi racial theory, Pacelli’s tenure was defined by a strategic, and ultimately tragic, silence. To be fair, Kertzer acknowledges the immense pressure the Vatican was under, yet he doesn't let the Pope off the hook for his lack of action. One of the most striking sections involves the Pope’s vocal complaints when Rome was bombed, contrasted sharply with his silence when other European cities were leveled. My only minor gripe is that the book occasionally gets bogged down in the minutiae of Italian internal politics. Still, for anyone interested in how religious power interacts with fascist regimes, this is a meticulously documented and valuable resource.

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Pete

At times, this feels like a dense trek through bureaucratic mud, but the destination is well worth the effort. Kertzer’s account of the Vatican’s 2020 archive opening adds a layer of modern intrigue to the historical narrative. The restriction on researchers—only being allowed five documents a day—makes you realize how much work went into synthesizing this story. Truth is, the book portrays a Vatican that was essentially a bystander to the Holocaust, prioritizing the safety of 'baptized Jews' over the millions of others being deported. The pacing is a bit deliberate, and some chapters move slower than a Roman summer, but the clarity it brings to a previously muddled history is undeniable. It's not a light read, but it is an important one for those who value primary-source history.

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Kevin

Why did the Pope stay silent when the trains were literally passing his window? That is the central, haunting question of Kertzer’s latest work. The author does a great job showing that it wasn't just fear of Hitler, but a calculated effort to remain a 'neutral' broker for a peace that never came. Look, the book is incredibly well-researched, but I did find the tone to be a bit unrelenting in its criticism at times. I would have liked a bit more exploration into the actions of the lower-level priests who did risk their lives, which are mentioned but often overshadowed by the focus on Pacelli. Regardless, it’s a vital piece of scholarship that finally brings the light of day to documents that were hidden for eighty years.

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Akira

I wanted to love this, but the narrative style felt a bit dry and repetitive in the middle sections. While the research is clearly top-notch and the access to the 2020 archives is a huge selling point, the book suffers from a bit of an identity crisis. Is it a scholarly text or a popular history? At over 500 pages, the emotional impact is sometimes lost in the endless back-and-forth of diplomatic cables and clerical hierarchies. To be fair, the sections on the occupation of Rome are gripping, but they are separated by long stretches of fairly tedious administrative detail. I appreciate the intellectual rigor Kertzer brings to the table, but I found myself skimming certain chapters just to get back to the main points.

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Sawit

While the research is undeniable, I felt the author's tone was occasionally one-sided, bordering on an indictment rather than a balanced history. Kertzer is a brilliant scholar, and his use of the newly opened archives is impressive, but he doesn't seem to give much weight to the genuine fear of a Communist takeover that drove many of the Vatican's decisions. The pacing is also a bit of a mixed bag; the beginning and end are fantastic, but the middle gets lost in the weeds of secondary characters. It’s a valuable book for the facts it uncovers, but I think it should be read alongside other perspectives to get a fuller picture of the impossible choices faced by the papacy during the war.

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Questions about this book

It examines how Pope Pius XII acted during World War II, using millions of Vatican documents unsealed in 2020. Kertzer shows a pope who sought peace at almost any price, held secret talks with Hitler through a German prince, Phillipp von Hessen, and kept his confirmed knowledge of the mass killing of Jews to himself. Kertzer concludes that this silence helped Hitler’s murders.

Kertzer argues neither label is complete. Pius XII did get more than 200 baptized converts freed from a Nazi roundup in Rome, and the picture of him as Hitler’s friend is wrong, or at best incomplete. But he stayed silent while more than 1,000 Roman Jews were sent to Auschwitz. Kertzer says the verdict depends partly on where you stand, yet concludes his silence aided Hitler’s killing.

According to Kertzer, his first priority was the church’s future. He saw the war as temporary and assumed Hitler and Mussolini would remain in power, so he avoided offending them. After Mussolini protested his mild telegrams to invaded nations, he barred the Vatican newspaper from criticizing either dictator. Kertzer leaves open whether anti-Semitism, pacifism or both drove him.

They revealed what four Jesuit editors had cut from files published from 1965 on: private meetings the pope held with Prince Phillipp von Hessen, who acted as Hitler’s envoy. In them the pope agreed to stay silent on Germany’s treatment of Jews and to restrain German clergy. The files also show he had confirmation of the mass killing of Jews and kept it secret.

Its central lesson is that silence from someone in power is never neutral. Pius XII believed keeping quiet protected the church, but it left victims without a voice and served the aggressors. The book invites readers to ask whose interests their own silence protects, and to speak clearly, unlike the pope’s 1942 protest buried on page 24 of a speech.

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