International Physicians
for the Prevention of Nuclear War

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Read the IPPNW World Congress Nagasaki Declaration
"We join our voices with those of the Hibakusha here in Nagasaki in calling for action for a more peaceful world and the prevention of nuclear war as an absolute imperative requiring the elimination of nuclear weapons."
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IPPNW Global Classroom
Are you concerned by the direction the world is moving in? Do you want to learn more about nuclear weapons and the risks they pose to human and environmental health?
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IPPNW Condemns Strikes Against Iran, Calls for Return to Negotiations
"There is no military solution to the problem of nuclear weapons proliferation anywhere in the world, particularly in the Middle East. The need for regional and international efforts to negotiate a nuclear-weapons-free Middle East have never been more urgent."
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Disarmament for Climate Justice and Health
Militarism, the climate crisis, and planetary health are deeply interconnected. As physicians and health workers, we warn that the climate crisis, militarisation, and nuclear weapons pose an acute threat to human and environmental health.
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Support our Work
The risk of escalation to the use of nuclear weapons is very real—by accident, misunderstanding or intentionally. IPPNW is doing everything in our power to prevent the unthinkable. Join us to support peace and prevent any use of nuclear weapons.
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Over 150 Medical Journals Issue Urgent Call for Elimination of Nuclear Weapons
The editorial calls on health professionals to, "join with the IPPNW to support efforts to reduce the near-term risks of nuclear war".
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Billions At-Risk of Starvation
“Nuclear Famine,” a report published by IPPNW, summarizes the latest scientific work, which shows that a so-called “limited” or “regional” nuclear war would be neither limited nor regional. On the contrary, it would be a planetary-scale event.
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Nuclear Weapons

IPPNW demonstration against nuclear weapons and nuclear war

Nuclear weapons threaten everything you know and love.

IPPNW is the only international medical organization dedicated to the abolition of these indiscriminate and illegal weapons. Together, we have a common-sense plan for their complete, irreversible elimination.

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New Report: Golden Dome or Golden Scam?

IPPNW, Physicians for Social Responsibility, and Back from the Brink released a scientific report on May 19 that finds a proposed U.S. missile defense system—dubbed the “Golden Dome”—would leave tens of millions of Americans vulnerable to nuclear attack while costing trillions of dollars and accelerating the global arms race.

The report notes that a comprehensive system capable of addressing modern threats could cost as much as $3.6 trillion—and yet would never be 100% effective, leaving hundreds of millions of Americans in target zones.

Key report findings: 

  • Even in a best-case scenario, more than 300 warheads would penetrate the defense system
  • 132 major U.S. cities could still be successfully targeted
  • 75 million Americans live in areas that would be totally destroyed

Read the Report
Read the Press Release

Nuclear Armed Nations

Nuclear armed nations

9 nuclear armed states – US, UK, Russia, China, France, India, Pakistan, Israel, North Korea- possess approximately 12,000 nuclear weapons.  These arsenals, possessed by only a few countries, have the power to destroy the world as we know it many times over. Only 3% of their nuclear power could kill up to every 3rd person on earth.

Nuclear Abolition

IPPNW Global Network

IPPNW global federation against nuclear weapons

Around the clock, IPPNW affiliates are working to rid the world of the nuclear threat. Our affiliates know that the only answer to this existential threat is total abolition. We are hard at work to achieve this reality through the UN Treaty on the Prohibition of Nuclear Weapons.

IPPNW affiliate network

Peace and Health Blog

  • The medical conscience of the nuclear age: the legacy of Hiroshima and Nagasaki’s physicians
    by Dr. Ghassan Shahrour on June 17, 2026 at 4:47 pm

    Introduction: Hiroshima Day 2026 Hiroshima Day, observed each year on 6 August, marks the moment the world first witnessed the catastrophic human consequences of nuclear weapons. The 81st anniversary in 2026 invites renewed commitment to prevention, justice, and global human security. As communities and campaigners prepare for this year’s observance, it is essential to recall the

  • The time has come for India to pursue peace initiatives in South Asia
    by IPPNW on June 15, 2026 at 2:08 pm

    by Arun Mitra The Indian government has become increasingly aligned with US policy and has effectively surrendered to pressure from President Trump. In a changing world, Russia and China are cooperating on many issues and expanding their influence in geopolitics. A growing number of developing countries in the Global South are strengthening their ties with

  • Explosive weapons and the future of peace: why civilian harm anywhere threatens stability everywhere
    by Dr. Ghassan Shahrour on June 12, 2026 at 7:14 pm

    When the International Network on Explosive Weapons (INEW) released its 2025 global report in May 2026, it delivered a message the world can no longer ignore: explosive weapons in populated areas are reshaping the nature of conflict worldwide. From Latin America to Eastern Europe, from the Sahel to South Asia, and across the Arab region,

  • Bridging Climate Crisis, Nuclear Weapons, Health, and Peace
    by IPPNW on June 10, 2026 at 6:02 pm

    The following remarks were delivered by Dr. Angelika Claussen at the SB64 side event, Peace and Climate Justice: Emissions, Finance and Equity, in Bonn, Germany on June 8, 2026. Hello, my name is Angelika Claussen, I am a physician by training and the vice-president of the German section of the international Physicians for the Prevention

  • Nuclear spending and global health: A physician’s reflection on human security
    by Dr. Ghassan Shahrour on June 10, 2026 at 5:43 pm

    The 2025 ICAN report on nuclear weapons spending, released on 9 June 2026, presents a stark picture of global priorities. In 2025, nine nuclear armed states spent 119 billion dollars on their nuclear arsenals, a nineteen percent increase from the previous year, equal to 3,768 dollars every second (ICAN 2026, Executive Summary). These expenditures are not

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