Nuclear Abolition Is Possible, and We Must Act to Make It a Reality

“The development of nuclear weapons signifies not a country’s elevation to greatness, but its descent to the darkest depths of depravity. These weapons are not a necessary evil; they are the ultimate evil.”—A-bomb survivor Setsuko Thurlow, Nobel peace prize ceremony for ICAN, December 2017

This August 6-9 marks the 81st anniversary of the US atomic bombings of Hiroshima and Nagasaki. The United States is the only country to have ever used nuclear weapons, having committed the unspeakable sin and crime in 1945, thus ushering in the nuclear age.

Rather than repenting for the evil of building and using nuclear weapons, making reparations to the victims, and promising to eradicate its nuclear program, the US government has instead made nuclear weapons the cornerstone of its military policy. This policy holds that the United States must be prepared to use any military means necessary, including nuclear weapons, to protect and ensure its “vital” national security and geopolitical interests.

The US nuclear weapons program was conceived under a shroud of secrecy that continues to this day, and without the consent of the US people. Beginning with the Manhattan Project in 1940, the US has spent over $9 trillion on its nuclear weapons program.

The nuclear challenge before us is great, but not insurmountable.

To date, the US government refuses to adopt a “no first-use” nuclear policy, declaring it reserves the right to use nuclear weapons in the case of conflict. Therefore, a US president could unilaterally order a nuclear attack at any time. According to peace advocate and author Joseph Gerson, the US has prepared or threatened to use nuclear weapons against adversaries an estimated 30 times to bolster its aims.

Moreover, the Trump administration’s Nuclear Posture Review includes planning for limited nuclear war by developing low-yield nuclear weapons to counter an adversary’s limited use of nuclear weapons in any conflict. The US government is now continuing a several decades long process to modernize its nuclear arsenal at a cost of nearly $1 trillion. Instead of funding vital human needs programs, this exorbitant expenditure (along with the $1.5 trillion 2027 military budget) constitutes a direct theft from the poor! The US, along with the eight other nuclear nations, refuse to ratify the Treaty on the Prohibition of Nuclear Weapons (TPNW) which now deems nuclear weapons illegal under international law. To date, 75 nations have ratified the TPNW.

On January 27, 2026, the Bulletin of the Atomic Scientists reset the Doomsday Clock to 85 seconds before midnight, the closest to global catastrophe it has ever been. This is due to the existential threats of nuclear war and the climate crisis, AI, and worsening world tensions and other perils. The Ukraine war has further aggravated the nuclear threat between Russia and NATO.

The nuclear threat is further exacerbated by recent threats against Iran by President Donald Trump, including to “blast Iran into oblivion” and “back to the Stone Ages,” and his warning: “A whole civilization will die tonight, never to be brought back again.”

As a leading nuclear superpower, the US practices a double standard by calling on other nations to disarm while, at the same time, it refuses to disarm and instead is rapidly expanding its own arsenal.

AI technology also increases the risk of nuclear war. A study by King’s College London published earlier this year revealed that AI models used in 21 simulated nuclear crises escalated the conflict by threatening nuclear war in 95% of 329 turns of play.

As we confront the nuclear peril today, it is imperative that we hear and heed the testimony of those who were directly impacted by nuclear weapons. Since 1945, the Hibakusha has urgently called on all the nuclear nations to abolish nuclear weapons stating that “humanity and nuclear weapons cannot coexist.” Additionally, people of faith and conscience have actively opposed and resisted nuclear war preparations, including those of blessed memory such as Dorothy Day, co-founder of the Catholic Worker movement, who immediately condemned the 1945 bombing; Bishop Tom Gumbleton (first bishop president of Pax Christi USA); Fr. Daniel Berrigan, SJ; Philip Berrigan—all Pax Christi USA teachers of peace—Thomas Merton, OCSO; Sr. Anne Montgomery, RSCJ; Fr. Carl Kabat, OMI; Sr. Ardeth Platte, OP—as well as peacemakers today like Pax Christi USA teachers of peace Elizabeth McAlister and James and Shelley Douglass, plus Fr. Steve Kelly, SJ, and so many more!

Throughout the Nuclear Age, different church denominations, faith leaders, and organizations and groups, including International Physicians for the Prevention of Nuclear War, International Campaign to Abolish Nuclear Weapons, Physicians for Social Responsibility, Back from the Brink, and Warheads to Windmills have also called for the total elimination of nuclear weapons. And there have been countless non-violent actions for nuclear disarmament and ending war. Since 1980, plowshares peacemakers have enacted the biblical prophecy of beating swords into plowshares by hammering and using others symbols to literally begin the process of disarmament. I have been blessed to be part of two plowshares actions.

Catholic leaders have made significant statements regarding the use of nuclear weapons and present nuclear peril.

• In 1972 St. Pope Paul VI stated, “It is unthinkable that no other work can be found for hundreds of thousands of workers than the production of instruments of death.” In 1976, he described the atomic bombings of Japan as a “butchery of untold magnitude.”
• In 1976, Fr. Richard McSorley, SJ said, “It’s a sin to build a nuclear weapon.”
• In 1981, Seattle’s Archbishop Raymond Hunthausen, the 1987 Pax Christi USA teacher of peace, stated: “Trident is the Auschwitz of Puget Sound… I say with deep sorrow that our nuclear war preparations are the global crucifixion of Jesus… the final crucifixion of Jesus, in the extermination of the human family with whom he is one.”
• In 1982, Bishop Leroy Matthiesen, the 2009 Pax Christi USA teacher of peace, told Catholics in his diocese who worked at the Pantex nuclear weapons plant in Amarillo, Texas, “In the name of the God of peace, quit your jobs.” In making this appeal, he said he would try to offer financial assistance to any defense worker who would quit.
• In 2017, for the first time ever, a pope condemned the very possession of nuclear weapons as immoral. Pope Francis declared: “Nor can we fail to be genuinely concerned by the catastrophic humanitarian and environmental effects of any employment of nuclear devices. If we also take into account the risk of an accidental detonation as a result of error of any kind, the threat of their use, as well as their very possession, is to be firmly condemned. For they exist in the service of a mentality of fear that affects not only the parties in conflict but the entire human race…”
• In 2020 Pope Francis reiterated, “The use of atomic energy for purposes of war is immoral, just as the possessing of nuclear weapons is immoral, as I already said two years ago.”
• Pope Leo has since continued his predecessor’s stance of calling for nuclear disarmament.
• On January 11, 2022, Archbishop John Wester of Santa Fe, New Mexico and recipient of the 2026 Pax Christi USA Teacher of Peace award, released a landmark pastoral letter: “Living in the Light of Christ’s Peace-A Conversation Towards Nuclear Disarmament.“
• There has also been the development of a new partnership of US, Japanese, and South Korean bishops. Last year they declared: “On the solemn occasion of the 80th anniversary of the atomic bombings of Hiroshima and Nagasaki and the end of World War II, Catholic bishops from the United States, Japan, and South Korea have come together in Hiroshima to call for a world free of nuclear weapons. Representing the Partnership for a World Free of Nuclear Weapons, the bishops joined with atomic bomb survivor organizations to honor the memory of those who perished, to stand in solidarity with survivors, and to urge the global community to reject the possession, use, and threat of nuclear arms.“

Last year, to mark the 80th anniversary of the atomic bombings, more than 500 people and 60 organizations in the US signed an Apology Petition to the Japanese people calling on the US government to apologize to Japan for the atomic bombings and pledge to ratify the TPNW. The mayor’s office of Nagasaki, Nihon Hidankyo (the main Hibakusha organization and 2024 Nobel Peace Prize recipient), and Catholic clergy and religious in Japan acknowledged receiving this petition and expressed their great appreciation.

Most recently, the groundbreaking “Rome Declaration for an Unarmed and Disarming Peace in the Age of Artificial Intelligence, Nuclear and Autonomous Weapons, New Digital Protocols, and Emerging Models of Digital Development,” was signed by over 200 Nobel laureates, leading AI innovators, and global academics.

Nuclear weapons are immoral and illegal, and no follower of Jesus should be involved in their production, financing, or use of them! The Catholic Church and all churches have a crucial role to play in helping to bring about a disarmed world. What if the church leadership in all denominations were to call on all Christians in the military nuclear chain of command to refuse orders to kill and use nuclear weapons, and publicly support those who do so? What if the churches could take the lead in calling for the conversion of arms industries to non-military production, while advocating for full and just protection of workers’ rights during the transition process? What if the church would provide material resources for those who quit their jobs for reasons of conscience? And what if the US Conference of Catholic Bishops and all Catholics—clergy, religious, and laity—and Christians in the US demanded that the US government ratify the TPNW? These efforts would go a long way to help create the climate necessary to bring about real disarmament.

Followers of the non-violent Jesus, who commands us to love and never to kill, cannot allow nuclear weapons, death-dealing technologies, and idols of death to ever be normalized, and must reject any ideology or theology that justifies war, genocide, and even omnicide. We need to adopt non-violent practices, as many are doing today, as a primary means to respond to conflict, to resist systemic violence and injustice, and advocating non-violent civilian defense as an alternative to militarized-based national security.

The nuclear challenge before us is great, but not insurmountable, for with God, and people acting on their faith convictions, all things are possible. History bears out this truth. I join with many peacemakers worldwide who believe that nuclear abolition can happen, and who are acting to make it a reality. During this August 6-9 time, numerous events and actions are taking place across the US and worldwide calling for nuclear abolition. I hope you who read this can join in one such action where you reside.

On September 4, 1989, six peacemakers and I participated in the Thames River Plowshares action in New London, Connecticut. We were able to swim and canoe to the docked USS Pennsylvania, the 10th Trident, and hammered and poured blood on the hull. Three of us, including myself, were able to climb on top of the submarine where we prayed for the abolition of nuclear weapons. From aboard this most destructive weapon, I believed then, as I do now, that if people have the faith to believe that disarmament is possible, and act on that faith, it can occur. Now is the time to act!

This article was first published on the Pax Christi USA web site.