"Enough of War!": Pope Leo XIV's Unwavering Call for Peace in a World at War

The first American-born pope has emerged as one of the most prominent voices on earth calling believers back to the Prince of Peace.

With wars raging across the Middle East and Ukraine, and the cost of those conflicts rippling out to the world's most vulnerable people, one voice has risen above the noise with unmistakable moral clarity. Pope Leo XIV — born Robert Francis Prevost in Chicago and elected as the first American pope following the death of Pope Francis in 2025 — has made the pursuit of peace the defining theme of his young papacy. And he is not whispering.

"Enough of war!" Leo cried out during an April 11 prayer vigil for peace at St. Peter's Basilica in Rome, gathering tens of thousands of the faithful from around the world. "War divides; hope unites. Arrogance tramples upon others; love lifts up." The vigil drew worshippers from every continent, who lit candles from the Lamp of Peace that burns perpetually at the tomb of St. Francis of Assisi — a fitting symbol for a pope who has taken his predecessor's posture of radical peacemaking and carried it forward.

Jesus Cannot Be Used to Justify War

Leo's peace witness has been deliberate, consistent, and theologically grounded. On Palm Sunday, standing before tens of thousands in St. Peter's Square as the US-Israeli war on Iran entered its second month, he insisted that God is the "king of peace" who rejects violence and comforts the oppressed, declaring that Jesus "rejects war, whom no one can use to justify war."

Those words carried particular weight at a moment when leaders on all sides of the Iran conflict have reached for religious language to sanction military action. The contrast with other prominent Christian voices was stark. While Defense Secretary Pete Hegseth convened a prayer service at the Pentagon asking God to help US forces and let "every round find its mark against the enemies of righteousness," the pope was in Rome insisting that God does not hear the prayers of those who wage war — but rejects them.

Leo is not naive about geopolitics, nor is he simply being reflexively anti-American. He is applying to the present moment the same theological framework that has animated Catholic social teaching for generations: that human beings are made for communion, not conquest, and that the church's loyalty is to the Gospel of peace above any nation's foreign policy interests.

Easter: A Rallying Cry Against Indifference

At Easter — Christianity's central celebration of life over death — Leo called on those who possess weapons to lay them down and those with the power to start wars to choose peace instead, insisting on "not a peace imposed by force, but through dialogue." He warned that humanity is drifting toward a dangerous numbness, growing "accustomed to violence, resigning ourselves to it and becoming indifferent" to the deaths of thousands.

He also addressed President Trump directly in the days surrounding Easter, expressing hope that the administration was seeking what he called an "off-ramp" — a way to reduce the violence and pursue de-escalation. Leo has consistently positioned himself as a critic of war and of political rhetoric that fuels it.

Prayer as Resistance

At the April vigil, Leo offered a theologically rich vision of what Christian peacemaking actually looks like in dark times. Prayer, he declared, "is not a refuge to evade our responsibilities" or "a painkiller to avoid the pain that unleashes so much injustice." Rather, it is the most powerful and subversive response available to the people of God. "In prayer, our limited human possibilities are joined to the infinite possibilities of God," he said — and those possibilities can break what he called "the demonic cycle of evil."

He called on every Christian community across the world to become a "house of peace" — a place where hostility is defused through dialogue, where justice is practiced, and where forgiveness is not an afterthought but a way of life. And he grounded his appeal not in sentimentality but in the resurrection itself, reminding believers: "We are a people who are already resurrected!"

A Word for All Christians

Pope Leo XIV is Catholic, and many who read these words are Protestant, evangelical, or from other traditions. Ecumenical differences are real, and they matter. But on this question — whether the church should bear witness to the peace of Christ in the midst of a world addicted to violence — Leo is articulating something that belongs to no single denomination. It is the witness of the Sermon on the Mount. It is the posture of the Prince of Peace, who told his disciples to put away their swords on the night of his arrest, and who rose from the grave not with vengeance but with the greeting: "Peace be with you."

The question for every Christian, regardless of tradition, is the same one Leo is putting to the world: In a moment when "the graves seem not to be enough," will we be peacemakers? Will we pray without ceasing for an end to these wars? And will we hold our leaders — of every party and every nation — accountable to the truth that no flag can claim the blessing of a God who is, above all things, the Lord of life?

How to Pray: Join the global church in praying for peace in Iran, Ukraine, Sudan, Gaza, and every other place where war is consuming lives. Pray for leaders on all sides to find the courage to choose dialogue over destruction. And pray that the church — in all its expressions — would be a credible, courageous witness to the peace the world cannot give itself.