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IN BRIEF
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At the United Nations, the resumption of work at the review conference of the Nuclear Non-Proliferation Treaty opens in a climate ofuncertainty and tension: for four weeks, the signatory states will try to prevent the text, which came into force in 1970, from losing even more of credibility and of trustThe threat of a arms race is tangible: the absence of a bilateral agreement between the two major powers since the expiration of the New START, the modernization and expansion of arsenals, and the alarming figure of 12,241 warheads recorded at the beginning of 2025 place the world on the brink of a possible escalationIn New York, calls to “revive” the Treaty are met with deep disagreements over the war in Ukraine, regional nuclear programs, and even the potential impact of theartificial intelligence on the control of arsenals.
The review conference of Treaty on the Non-Proliferation of Nuclear Weapons The UN summit opens in a climate of uncertainty: diplomatic divisions, the ongoing modernization of arsenals, and the emergence of new technologies pose an unprecedented risk of a resurgence of… nuclear arms raceThis article examines the immediate issues — from the state of warhead stockpiles to political gridlock and the threat posed by…artificial intelligence — and places these developments within the framework of current treaties and public perceptions.
Context and significance of the UN meeting
Since its entry into force in 1970, the NPT aims to prevent the proliferation of nuclear weapons, promote the disarmament and to regulate the peaceful use of atomic energy. The conference, held over several weeks at the United Nations headquarters in New York, took place in a tense geopolitical context: the disappearance of major bilateral mechanisms, regional conflicts and rising tensions between powers tested the ability of the States Parties to reach a consensus.
Recent statements by UN officials and the conference presidency underscore that the outcome is not limited to a few years: the success or failure of this work will have lasting consequences for global stability and the credibility of the Treaty. The need to revitalize the text is now presented as urgent, otherwise the treaty risks gradually weakening.
The state of arsenals: figures and trends
Recent observations show a clear increase in nuclear capabilities. According to the Stockholm International Peace Research Institute, the nine nuclear powers possessed more than 12,000 warheads By early 2025, almost all of these weapons will be concentrated in the hands of the United States and Russia. UN disarmament officials note a common trend: a quantitative strengthening and widespread modernization of strategic forces.
At the national level, several actors are making clear choices regarding their arsenals: France has announced a shift in its deterrence posture, including an increase in the number of warheads, while other powers claim to be modernizing their forces in response to perceived moves by their rivals. Public statements and expert reports highlight the risk of a reciprocal dynamic, where each increase encourages the other to follow suit.
Diplomatic obstacles and risks of blockage
The conference’s decision-making process is based on the consensusThis makes compromise difficult when rivalries are heightened. Previous editions have already failed to produce a final declaration for specific political and regional reasons, and current tensions suggest further deadlock.
Recurring points of friction
Numerous issues could hinder an agreement: the war in Ukraine, the nuclear programs of Iran and North Korea, and the question of a nuclear-weapon-free zone in the Middle East. Each point involves alliances, regional interests, and interpretations of international law that complicate the search for a common language.
Consequences of another failure
If no progress is made, experts believe the Treaty will not disappear instantly, but will become more fragile: loss of confidence, weakening of the credibility of commitments, and a gradual rise in behaviors of proliferationThe scenario of a slow unraveling is causing concern among diplomats and disarmament specialists.
Technology and innovation: artificial intelligence in the background
A new factor has been added to this conference: theartificial intelligenceCalls are growing for clear safeguards to prevent the automation of decisions related to nuclear weapons and to guarantee human control over weapons systems. The link between algorithms, sensors, and command systems raises concerns about breakdowns in the decision-making chain and misinterpretations that could lead to unintended escalations. For an overview of the public and technical debates on this topic, see the analysis on the threats posed by AI in the new arms race.
The issue of AI is no longer purely theoretical: it is now part of discussions on strategic security and how to prevent a technical failure or poor algorithmic assessment from leading to a major crisis.
Public perception and political choices
The way citizens perceive nuclear risk also influences public decisions. Surveys and studies show varying levels of sensitivity to nuclear threats and security issues, which shapes national priorities in defense and transparency. In France, debates surrounding deterrence and its effects on national security have revived questions about the legitimacy and effectiveness of a posture based on nuclear weapons.
Officials from international agencies warn of a growing temptation to view nuclear weapons as a strategic asset rather than a collective danger: an interpretation they consider dangerous and erroneous, and which, if it becomes widespread, could fuel new dynamics of security by force.
Possible scenarios and implications for global security
Several trajectories are emerging: intensified modernization without direct confrontations, a drift towards tests and demonstrations of force, or an accidental escalation caused by a miscalculation. Disaster scenario analysts emphasize that the combination of more weapons, autonomous systems, and a deteriorating diplomatic climate increases the likelihood of serious incidents.
A massive return to the logic of the arms race would profoundly alter the global strategic balance: increased military spending, weakening of international non-proliferation norms, and increased tension in areas where the presence of nuclear weapons makes the crisis more dangerous and more difficult to resolve.
Additional resources and perspectives
To delve deeper into the issue of military proliferation and the mechanisms at play, detailed analyses are available, including a synthesis on the proliferation published by university researchers, the risks associated with integrating AI into weapons systems have been addressed in several news and expert articles. Prospective studies also describe arms race scenarios and areas of tension identified by the international press and specialized institutions.
In addition, national surveys on risk and safety perception provide insight into public opinion and its expectations of governments regarding prevention and transparency.
Useful links: academic analysis on proliferation, investigation into AI and the nuclear threat, arms race scenarios, markers on the live areas And barometer on risk perception in France.
Review Conference of Nuclear Non-Proliferation Treaty : frequently asked questions
Q What is the purpose of the meeting currently taking place at the headquarters of theUN ?
R This is a review conference of the NPT which is expected to last approximately four weeks in New York. The States Parties meet to assess the implementation of the treaty, debate the disarmament, non-proliferation and cooperation for the peaceful use of nuclear energy.
Q Why is the outcome of these meetings uncertain?
R Decisions are made by consensusDeep geopolitical disagreements—linked in particular to the war in Ukraine, the nuclear programs of Iran and North Korea, and regional issues such as the Middle East—complicate the search for a common text. Previous conferences have already failed to adopt a final declaration for similar reasons.
Q What obstacles prevented previous conferences from taking place?
R In 2015, opposition from key states prevented the adoption of a nuclear-weapon-free zone in the Middle East. In 2022, obstacles related to the war in Ukraine and references to occupied nuclear facilities prevented any consensus.
Q Which countries are not signatories to the NPT ?
R Several important states have never ratified the treaty, including Israel, India And Pakistan. There North Korea she withdrew from it in 2003.
Q Is the world’s nuclear arsenal actually increasing?
R Yes. According to recent estimates from the institute SipriThe nine nuclear powers possessed some 12,241 nuclear warheads By early 2025, the vast majority will be concentrated in the United States and Russia. UN officials also report a quantitative increase and a modernization of capabilities.
Q What role does the expiration of the treaty play? New START between Russia and the United States?
R The end of this bilateral control treaty, which occurred in February, leaves a major gap in the reduction and transparency of the arsenals of the two largest nuclear powers, which increases the risks of an arms race and diminishes the mechanisms of trust.
Q What important messages were expressed by international leaders?
R The Secretary General of theUN warned of the danger of errors leading to a nuclear catastrophe and called for the treaty to be revitalized. The conference president cautioned that failure would have consequences extending far beyond the conference room and the next five years. The director of the International Atomic Energy Agency warned against the misconception that nuclear weapons enhance security.
Q Have recent national decisions influenced the dynamics?
R Yes. Some leaders have announced or are considering arsenal expansions or new activities, and these choices are fueling concerns about a possible resumption of an arms race.
Q Is artificial intelligence a topic of debate at this conference?
R L’artificial intelligence This issue could be raised in discussions, particularly regarding the requirement for human control over nuclear weapons systems. Some are calling for commitments to limit the autonomy of systems related to nuclear weapons.
Q THE NPT Is there a risk of it collapsing?
R Experts believe the treaty will not implode overnight, but it could unravel if the commitments remain ineffective, if trust disappears and if disarmament mechanisms are not restored.
Q What would be the consequences of a failure of the conference?
R Failure could reinforce the dynamics of proliferationaccelerate the modernization and accumulation of nuclear weapons, erode the credibility of the treaty and exacerbate long-term global security risks.
Q What measures are recommended to get the treaty back on track?
R The calls concern the reinforcement existing commitments, respect for obligations, revival of bilateral control agreements and restoration of multilateral trust in order to breathe new life into the treaty.