Long precedent of papal clashes with world leaders

It was long assumed—by historians and Vatican watchers alike—that an American cardinal would be an unlikely choice for pope. Given the United States’ superpower status, many believed the Catholic Church would be wary of granting Washington additional influence through the papacy. Yet the increasingly public clash between Pope Leo XIV and US President Donald Trump suggests those concerns may be fading.

At first, it was unclear how Leo would position himself. Unlike Pope Francis, known for his candid, off-the-cuff remarks, Leo initially adopted a more reserved tone and avoided naming world leaders directly, as noted by Foreign Policy. But as the war in Iran escalated in March, he became more explicit—calling out Trump by name and describing the president's threat to "end civilization" in Iran as “unacceptable.”

Despite the intense media focus on their dispute, tensions between popes and political leaders are far from new. Such clashes date back to the Middle Ages and have helped shape the Catholic Church’s role on the global stage.

According to the article, the current moment is best understood in the context of papal diplomacy after World War II. Since then, successive popes have consistently advocated for peace, often putting them at odds with world leaders. This suggests that, even as US policy shifts, the first American pope is likely to continue speaking out internationally—even if that places him in conflict with Washington.

The roots of such confrontations stretch back centuries. When Martin Luther nailed his 95 theses to a church door in Wittenberg in 1517, he sharply criticized papal abuses and corruption. He also commissioned provocative woodcuts with Lucas Cranach the Elder depicting the pope in grotesque forms. With the advent of the printing press, such imagery became an early form of mass media—offering a historical parallel to today’s viral political content.

But whereas Pope Leo X excommunicated Luther in 1521, Leo XIV has taken a different approach. He has said it is “not in my interest at all” to debate Trump, instead emphasizing that he will be “looking for ways to promote justice in our world, promote peace in our world.”

War and Peace in 20th century

In this sense, Leo’s stance aligns with more recent papal tradition. Pope Pius XII faced criticism over the Vatican’s position during World War II, but his successors took a more vocal role in promoting peace. Following the atomic bombings of Japan, the Vatican repeatedly called for nuclear disarmament. In 1963, Pope John XXIII issued Pacem in Terris, arguing that “in this age which boasts of its atomic power, it no longer makes sense to maintain that war is a fit instrument with which to repair the violation of justice.”

Two years later, Pope Paul VI became the first reigning pope to address the United Nations General Assembly, declaring: “No more war; war never again! It is peace, peace, that has to guide the destiny of the nations of all mankind!”—a line Leo has since echoed in reference to Ukraine.

Subsequent popes continued this tradition. Pope John Paul II warned ahead of the 2003 Iraq War that “War is not always inevitable. It is always a defeat for humanity.” More recently, Francis described Russia’s 2022 launch of attacks on Ukraine as “painful and shameful,” while Leo has met Volodymyr Zelenskyy multiple times in efforts to promote peace.

Over the past year, Leo’s rhetoric has grown more pointed. With conflicts unfolding in Iran, Gaza, Sudan, and Ukraine, he announced a global prayer vigil on Easter Sunday—mirroring a similar call by Francis in 2013 after a chemical weapons attack in Syria. But unlike in 2013, when the Obama administration maintained cordial relations with the Vatican, Leo’s appeals have been met with sharper pushback from Washington.

Two days after Easter, Trump warned on social media that without a deal with Iran, “a whole civilization will die tonight.” Leo called such language “unacceptable,” addressing Trump directly and even urging citizens to contact their congressional representatives—an unusually direct intervention for a pope.

Trump responded with a personal attack on Truth Social, calling Leo “WEAK on crime” in a lengthy post, followed by an AI-generated image depicting himself as Jesus, which drew criticism from religious leaders before being taken down.

Despite the escalation, Leo has remained consistent in tone. Asked about the attacks, he said he is “not afraid of the Trump administration” and reiterated: “I will not enter into debate. The things that I say are certainly not meant as attacks on anyone. The message of the Gospel is very clear: ‘Blessed are the peacemakers.’”

At a Turning Point USA event, Vice President J.D. Vance—a recent Catholic convert—publicly cautioned the pope, saying, “If you're going to opine on matters of theology, you've got to be careful."

As the Foreign Policy article concludes, the broader lesson is not the novelty of the clash itself, but the continuity it represents: "Though many headlines have been generated about the recent clash between Trump and Pope Leo, the notion that a pope speaks out about peace and on behalf of the victims of war should not be breaking news."

By Nazrin Sadigova