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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Golden Dome or Golden Scam?
Read the report about the strategic missile defense system that would leave tens of millions of Americans vulnerable to nuclear attack while costing trillions of dollars and accelerating the global arms race.
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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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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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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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Over 100 medical journals call for nuclear weapons elimination

Over 100 medical and health journals, including The Lancet, The BMJ and the International Nursing Review, have issued a joint call to move rapidly to eliminate nuclear weapons. Leaders of the global health community warn that any use of nuclear weapons would be catastrophic for humanity, and they call for primary prevention by abolishing the weapons before they can be used.

Citing the special responsibility of the health community, the editorial states, “Health professionals have a vital role to play in keeping a health focus in public discussions on nuclear risk. We need a verifiable, deadline-driven agreement to eliminate all nuclear weapons. This is why it is essential that the health sector continues to demand that every country – including the nuclear armed states – should join the Treaty on the Prohibition of Nuclear Weapons. The flourishing, and even the survival, of the human species is at stake.”

Read the Editorial

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

  • Over 100 medical journals call for nuclear weapons elimination
    by IPPNW on November 15, 2026 at 12:00 pm

    Read the joint editorial, Critical Condition: What Are We Doing About Nuclear War?, here and IPPNW’s press release here. Over 100 medical and health journals, including The Lancet, The BMJ and the International Nursing Review, have issued a joint call to move rapidly to eliminate nuclear weapons. Leaders of the global health community warn that

  • Nuclear power is a false climate solution
    by IPPNW on November 6, 2026 at 7:20 pm

    In the run-up to the forthcoming COP31 World Climate Summit in Turkey, the Women and Gender Constituency (WGC)—one of the nine officially recognized non-party stakeholder groups of the United Nations Framework Convention on Climate Change (UNFCCC)—published a clear statement against the misrepresentation of nuclear energy as a climate solution. Entitled “False solutions and feminist climate

  • There’s no national security without international security
    by Lawrence Wittner on November 2, 2026 at 12:00 pm

    For millennia, the world’s people have been kidding themselves about national security. Worried about the survival of their nation in a world of self-interested, sometimes aggressive nations, people have armed and prepared themselves for war.  Only military strength, they have assumed, would fend off or defeat a military attack on their nation. And a case

  • Over 200 Global Organizations Demand US Congress Prevent Nuclear Strike Against Iran
    by IPPNW on October 30, 2026 at 1:00 pm

    Read the statement in full here. More than 200 national and international civil society organizations issued a joint statement today demanding that the United States Congress immediately intervene to prevent the use of nuclear weapons against Iran. The unified declaration, which was initiated by Back from the Brink, IPPNW, and Physicians for Social Responsibility, follows

  • Ronald McCoy: A physician in the service of peace and nuclear disarmament
    by Dr. Ghassan Shahrour on October 29, 2026 at 11:30 am

    The passing of Malaysian physician Dr. Ronald Steven McCoy (1930-2026) leaves an enduring legacy in the global movement against nuclear weapons. A clinician and advocate who seamlessly integrated professional responsibility, moral courage, and strategic vision, Dr. McCoy played a pivotal role in launching one of the most consequential international initiatives aimed at ending the nuclear era. Notably,

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