UNITED NATIONS, Apr 27 2026 (IPS) - The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will meet at the United Nations in New York from 27 April to 22 May 2026. State parties to the treaty will meet with the urgent aim of finding common ground on the issue of nonproliferation.
“The NPT is very often referred to as a cornerstone of the international disarmament and nonproliferation regime and also a very important pillar of international peace and security,” said Izumi Nakamitsu, Under-Secretary-General of the UN Office for Disarmament Affairs (ODA).
The NPT came into effect in 1970 and was extended indefinitely in 1995. This landmark international treaty calls for all signatories to prevent the spread of nuclear weapons and promote nuclear disarmament above all and encourages pursuing more peaceful uses of nuclear energy. It remains the only legally binding agreement that nuclear powers adhere to, with 191 states, both nuclear and non-nuclear, as signatories to the treaty. Review conferences are typically held at five-year intervals beginning in 1970 (the conference originally scheduled for 2020 was delayed due to the COVID-19 pandemic and was later held in 2022).
The president of the conference is Do Hung Viet, the Permanent Representative of Vietnam to the UN. The conference is expected to begin with a general debate during the first week, which will be followed by thematic discussions under each of the three pillars of the Treaty.
It will be attended by high‑level representatives, including Ministers of Foreign Affairs, as well as senior representatives of key international organizations. Side events will be held in parallel to the thematic discussions by attending members of civil society. This year’s conference will assess the implementation of the NPT since the last review conference, which ended without countries reaching a consensus on the final outcome document.
Ahead of the conference, Nakamitsu spoke to reporters at UN headquarters on 24 April. She remarked that state parties should take this meeting as an opportunity to converge on common ground when it came to nonproliferation. Ultimately, country representatives would want to avoid both an increase in proliferation and the intentional use of nuclear weapons. It will be a collective responsibility, said Nakamitsu, for the state parties to reach a consensus on the outcome document.
The NPT Review Conference will convene during a period of deepening geopolitical tensions, where major nuclear powers are embroiled in regional conflicts. The current military conflict in Iran and, in particular, the war in Ukraine from 2022, have caused shifts in countries’ attitudes about nuclear proliferation.
Some experts have claimed that the situation has led to a start of a new arms race as more countries hold discussions around “improving” nuclear weapons and even outright expanding into procuring nuclear arms themselves, as some see weapons as the “ultimate guarantor of national security”. Nakamitsu acknowledged this as a “proliferation driver”, or growing public sentiment for nuclear proliferation, irrespective of the formal governments’ position on the NPT. She also expressed concern over the increased rhetoric that threatened the use of nuclear weapons, warning that the more nuclear weapon states there were, the greater the risks of nuclear weapons being used by mistake or by miscalculation.
“[The] prevention of nuclear weapons’ use will have to become also one of the key focuses of the conference because when it comes to nuclear weapons, again, it’s not just one or two countries’ security; it goes beyond the borders. It is the security of all of us,” said Nakamitsu. “We need to put to rest the wrong narrative that more nuclear weapon states would guarantee our security.”
A “shared sentiment in crisis” within all state parties may in fact encourage them to “protect and maintain” the NPT. Despite this, Nakamitsu warned that with a growing leniency around nuclear weapons, this poses a risk to the gains made right after the end of World War II and throughout the Cold War.
In the current strategic security environment, the rapid rise of certain technologies will also be a factor in discussions. The advent of artificial intelligence has sparked great debate within the international community for its application in certain sectors and the risk of misuse without the proper guardrails.
It was only in December 2024 that the UN General Assembly passed a resolution that detailed the use of AI in the military domain and ‘its implications for international peace and security’, though it should be noted that there is no reference to the use of AI in the context of nuclear weapons.
When asked whether the issue of AI in the military-nuclear nexus would be discussed during the NPT conference, Nakamitsu noted that the integration of AI in the nuclear command and communications channel is “beginning to be discussed on different platforms”, and further consultations would also be held in Geneva this year. The NPT conference may not be the forum for further discussions around this issue or regarding AI governance in the military context. However, this is something that state parties recognise will require investigation, including when it comes to placing guardrails on the use of AI in the military domain.
“There is an increasing awareness that when it comes to nuclear weapons’ command and control, obviously humans have to retain oversight,” Nakamitsu told Inter Press Service.
The challenges facing the international world, particularly in the context of the conflicts in Europe and the Middle East, are placing “significant stress on the treaty,” according to Nakamitsu.
But it is also what makes the NPT review conference and its outcomes all the more relevant. A shared understanding that nuclear proliferation will only lead to further instability and insecurity is what will push member states to engage in critical dialogue over the next four weeks. This must also yield a shared commitment to uphold the principles of the NPT by the end.
IPS UN Bureau Report
