Nuclear disarmament at breaking point as mistrust grows – but hope remains

Yet even as the architecture weakens, signs of progress – including nuclear-weapon-free zones and rising youth engagement – offer grounds for cautious hope, a UN researcher on nuclear non-proliferation has told UN News.

Gaukhar Mukhatzhanova, a fellow with the UN Institute for Disarmament Research (UNIDIR) – an autonomous institute studying disarmament and international security issues – said that decades of arms control built through painstaking negotiations are now at risk of unravelling.

“The situation right now is very difficult,” she added.  

“We are observing the disintegration of the arms control architecture that was built primarily through negotiations between [the then] Soviet Union – and subsequently Russia – and the United States.”

Gaukhar Mukhatzhanova, briefs the Security Council on nuclear disarmament and non-proliferation. (November 2025)

Arms control architecture under strain

That erosion has left the global non-proliferation regime increasingly fragile, with most Cold War-era agreements either abandoned or expired. The 2010 US-Russia New START accord – which capped deployed strategic nuclear warheads – expired this week without a successor in place.

While both American and Russian presidents acknowledged the dangers of a renewed nuclear arms race, no replacement for the New START is currently under negotiation.

This is a troubling backdrop for the next review conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), scheduled for April-May in New York, Ms. Mukhatzhanova said.

Opened for signature in 1968 and extended indefinitely in 1995, the NPT remains the only binding multilateral treaty requiring nuclear-weapon States to pursue disarmament.  

However, the political conditions that once made cooperation possible have deteriorated sharply, added Ms. Mukhatzhanova.

We are back to a period of severe mistrust between the major actors – arguably worse than during the Cold War,” she said.

We are back to a period of severe mistrust between the major actors – arguably worse than during the Cold War

Challenges and emerging risks

Statements by the US suggesting a possible resumption of certain forms of nuclear testing have raised alarm, even if limited to so-called “subcritical experiments” – highly explosive tests where no chain reaction is involved.

Such moves, Ms. Mukhatzhanova said, risk undermining the Comprehensive Nuclear-Test-Ban Treaty (CTBT) and reopening questions many hoped were settled.

“If full-scale explosive testing were to return,” she warned, “we are talking about a really drastic and very negative change – one that would open the door for others to resume nuclear testing.

New technology, new risks

Hypersonic weapons, autonomous systems and artificial intelligence are accelerating arms competition and increasing the risk of miscalculation.

The concern is that too much is left to the decision of a machine,” Ms. Mukhatzhanova said, warning that AI-driven early-warning systems could misinterpret data and trigger inadvertent escalation.

She noted recent UN resolutions calling for “meaningful human control” over nuclear-related technologies.

Hiroshima, shortly after a nuclear bomb was dropped on this city in August 1945.

Room for progress remains

Despite the grim outlook, she highlighted areas where progress continues.

Nuclear-weapon-free zones – covering Latin America and the Caribbean, Africa, Southeast Asia, the South Pacific and Central Asia – demonstrate how states can pursue security without nuclear weapons.

“They are a feel-good story,” she said, describing them as practical examples of cooperation even amid global tensions. The Central Asian zone stands out for its strong verification standards and links to broader non-proliferation commitments.

Young people engaging

Ms. Mukhatzhanova also pointed to growing engagement by younger generations, who increasingly question the long-standing narrative that nuclear weapons guarantee security.

They are ready to challenge that framing,” she said. “That gives me hope.

While the arms control system may be fraying, she argued that history shows it can be rebuilt.

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Potential turning point for Gaza as peace plan enters second phase: UN envoy

Ramiz Alakbarov warned that risks of violence escalating again remain high, while the situation in the occupied West Bank continues to deteriorate.

The Deputy Special Coordinator for the Middle East Peace Process said he was addressing ambassadors “at a moment of both profound opportunity and considerable risk,” pointing to cautious diplomatic progress on Gaza alongside deepening instability elsewhere.

“In front of us we see a potential turning point for Gaza, a genuine chance for a better future,” Mr. Alakbarov said. “But many uncertainties remain.”

He heralded the second phase of President Donald Trump’s 20-point Comprehensive Plan as “a critical step in consolidating the ceasefire in Gaza,” alongside the establishment of new transitional bodies, including the National Committee for the Administration of Gaza and the Office of the High Representative for Gaza.

Deputy Special Coordinator Alakbarov briefs the Security Council members via video link.

Monumental task ahead

Mr. Alakbarov said he had just returned from Cairo, where he met members of the National Committee to discuss how the UN could support efforts to restore essential public services, facilitate humanitarian aid and begin planning for reconstruction, in line with Security Council resolution 2803.

He cautioned that the task ahead is “monumental” and will require close coordination among all stakeholders, considering existing systems and capacities.

The UN envoy welcomed the recovery of the remains of the last hostage held in Gaza, expressing condolences to the family of Ran Gvili and said he hoped that with all hostages returned, “the process of healing for the families and all those affected may begin.”

He also said Israel’s announcement that the Rafah crossing would open for pedestrian movement in both directions was encouraging, while stressing that demilitarisation of the Gaza Strip and effective security arrangements remain essential for the next phase to succeed.

Mr. Gvili was among more than 250 Israeli and foreign nationals abducted by Hamas and other Palestinian armed groups during their 7 October 2023 attack on southern Israel, in which more than 1,250 people were also killed.

The ensuing Israeli military offensive in Gaza resulted in widespread devastation and a massive loss of Palestinian life, with tens of thousands reported killed and countless others wounded, many suffering life-long injuries.

Gazans want a better, stable future

Despite continued hardship, Mr. Alakbarov said his recent visit to Gaza underscored the determination of its people.

The people in Gaza are ready and eager to lead the way to a better, more stable future,” he told the Council, describing students taking exams under extreme conditions, farmers finding ways to plant despite shortages, and small business owners adapting to a devastated market.

At the same time, he emphasised that humanitarian needs remain severe. Nearly the entire population of Gaza still requires assistance, with more than 1.5 million displaced people exposed to winter rains and cold temperatures.

Mr. Alakbarov warned that humanitarian operations are still unable to function at scale, citing insecurity, access restrictions and delays at crossings.

Occupied West Bank unravelling

Turning to the occupied West Bank, the senior UN official said the situation is “unravelling,” marked by ongoing violence, settlement expansion, demolitions and displacement.

These trends, he warned, are undermining prospects for peace and could jeopardise progress on implementing the second phase of the ceasefire plan.

The implementation of the second phase of the Gaza ceasefire plan is critical,” Mr. Alakbarov said, urging the Council to act collectively.

He reaffirmed the UN’s commitment to supporting Palestinians and Israelis in advancing toward a two-State solution, in line with international law and UN resolutions.

Click here for in-depth coverage of this meeting, including national and regional positions.

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Haiti crisis at breaking point as gangs tighten grip ahead of transition deadline

With the political transition set to expire on 7 February, officials cautioned that escalating violence, entrenched criminal networks and mounting humanitarian needs risk pushing Haiti further into instability unless security and political efforts are urgently sustained.

Carlos Ruiz-Massieu, the head of the UN Integrated Office in Haiti (BINUH), said the country had entered a “critical phase” in efforts to restore democratic institutions, calling on Haitian actors to contain political fragmentation and prioritise elections.

“Let us be clear: the country no longer has time to waste on prolonged internal struggles,” he said, stressing the need for continuity of governance arrangements beyond the February deadline and sustained coordination to bring the transition to a close.

Mr. Ruiz-Massieu said recent steps toward elections were encouraging, citing the adoption of an electoral decree on 1 December and the publication of an calendar for going to the polls later that month.  

New provisions on voter registration, overseas voter participation and women’s representation could boost inclusivity if effectively implemented, he added.

Security still fragile

But progress on the political front is unfolding against a deteriorating security landscape.

Gangs continue to mount coordinated attacks, control key economic corridors and agricultural regions, and force mass displacement – stretching police and humanitarian capacity to the limit.

The murder rate in 2025 rose by nearly 20 per cent compared with 2024, he said.

Some security gains have been made. Police operations, supported by the Security Council-authorised Gang Suppression Force, have reopened roads in parts of Port-au-Prince and the Artibonite Department, while state presence around the capital’s Champ de Mars has been gradually restored.

Mr. Ruiz-Massieu cautioned, however, that such gains remain fragile and risk reversal without sustained pressure and basic service delivery.

Read our explainer on the situation in Hait: Why the crisis is deepening, and what comes next

Gangs reorganising and restructuring

The evolving violence reflects a deeper transformation of Haiti’s criminal landscape, according to John Brandolino, Acting Executive Director of the UN Office on Drugs and Crime (UNODC).

Once-fragmented gangs have reorganised into structured criminal networks with defined leadership, territorial ambitions and diversified revenue streams.

Coalitions such as Viv Ansanm have coordinated large-scale attacks on police, prisons and economic infrastructure, he said, allowing gangs to consolidate control over Port-au-Prince and strategic corridors into Artibonite and Plateau Central.

Extortion has become a core revenue source, alongside trafficking in drugs, weapons and ammunition.

Implications for regional security

UNODC said the crisis is increasingly regional, driven by adaptive arms-trafficking routes, illicit financial flows and corruption. Despite enforcement efforts, traffickers continue to shift routes through weaker ports and offshore transfers to evade embargo controls.

Both officials underscored the importance of the transition of the Multinational Security Support Mission into the Gang Suppression Force and the establishment of the UN Support Office in Haiti, calling for predictable funding and continued international backing.

Beyond security, the humanitarian situation remains dire. Around 6.4 million people require assistance, with Haiti among the least-funded humanitarian responses globally.

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Guterres: ‘Breaking point’ reached in Israel-Palestine conflict, urgent action needed on two-State solution

Speaking Monday morning at the high-level conference on the peaceful settlement of the question of Palestine and the implementation of the two-State solution, the UN chief painted a stark picture of a conflict that continues to “take lives, destroy futures, and destabilise the region and our world.”

“We know that the Israeli-Palestinian conflict has endured for generations – defying hopes, defying diplomacy, defying countless resolutions, defying international law,” Mr. Guterres said. “But we also know its persistence is not inevitable. It can be resolved. That demands political will and courageous leadership. And it demands truth.”

The truth is: we are at a breaking point. The two-State solution is farther than ever before.

The Secretary-General denounced the 7 October Hamas attacks on Israel and hostage-taking as acts of terror he has “repeatedly condemned.” At the same time, he said “nothing can justify the obliteration of Gaza that has unfolded before the eyes of the world.”

He also spoke out against the starvation of civilians, the killing of tens of thousands, mass displacement, settler violence and the “creeping annexation” of the occupied West Bank – a move he called “illegal”.

Stop undermining two-State solution

Unilateral actions that would forever undermine the two-State solution are unacceptable and they must stop,” he said. “These are not isolated events. They are part of a systemic reality that is dismantling the building blocks of peace in the Middle East.”

The three-day conference is mandated by the General Assembly through resolutions ES-10/24 and 79/81, is co-organized by France and Saudi Arabia. It includes plenary sessions and thematic roundtables on issues such as security arrangements, humanitarian needs, reconstruction, and the economic viability of a future Palestinian state.

A group photograph of senior UN officials and ministers attending the high-level international conference.

Move beyond ‘well-meaning rhetoric’

In his speech, Mr. Guterres urged Member States not to let the event become “another exercise in well-meaning rhetoric.”

“It can and must serve as a decisive turning point – one that catalyses irreversible progress towards ending the occupation and realising our shared aspiration for a viable two-State solution,” he said.

Reiterating the long-standing UN position, the Secretary-General said the two-State solution remains the only viable path to peace – with Israel and Palestine living side-by-side within secure, recognised borders, based on the pre-1967 lines, with Jerusalem as the capital of both States.

It is the sine qua non [Latin for indispensable or absolutely essential] for peace across the wider Middle East,” he concluded.

More to follow…

Jean-Noël Barrot, Minister for Europe and Foreign Affairs of France; Faisal bin Farhan Al Saud, Minister of Foreign Affairs of Saudi Arabia; and Mohammad Mustafa, Prime Minister of the State of Palestine also spoke at the meeting.

The meeting continues with wrap-up sessions of the thematic roundtables. 

A plenary meeting in the General Assembly Hall will take place at 3 PM New York time.

You can follow the live coverage of the conference here.

‘We are at a point of no return’: grave violations against children surge for third year

This number represents a 25 per cent increase from 2023, marking the third consecutive year that violations have increased. 22,495 violations were committed against children themselves while the remaining targeted infrastructure such as schools and humanitarian aid intended for and used by children.

“The cries of 22,495 innocent children who should be learning to read or play ball — but instead have been forced to learn how to survive gunfire and bombings — should keep all of us awake at night,” said the Special Representative of the UN Secretary-General for Children and Armed Conflict, Virginia Gamba.

The report only details violations which could be independently verified by the United Nations, meaning the actual number of grave violations and children affected are likely much higher.

‘Children should not be a casualty of war’

The report attributed the increase to indiscriminate attacks — especially urban warfare — in addition to disregard for peace agreements and deepening humanitarian crises worldwide.

“Children living amidst hostilities are being stripped of their childhood … When we allow this to happen, we are not just failing to protect children – we are taking away their chance to grow up safe, to go to school, and to live a life with dignity and hope,” Ms. Gamba said.

In addition to the broader increase, the number of children subjected to multiple grave violations increased by 17 per cent.

The highest number of violations, 8,554, occurred in Israel and the Occupied Palestinian Territories – more than double the number in the Democratic Republic of the Congo (DRC) which followed.

Governments ‘blatantly’ ignore international law

The report noted that while non-State actors played an out-sized role in violations against individual children, government actors were the main forces responsible for killing and maiming children, attacking schools and hospitals, and denying humanitarian access.

“Instead of recognizing the special protection afforded to children, governments and armed groups around the world blatantly ignore international law that defines a child as anyone under 18,” Ms. Gamba said.

The report listed eight countries whose government forces violated international law and committed grave violations against children — the DRC, Israel, Myanmar, Somalia, South Sudan, Sudan, Syria and Russia.

‘A wake-up call’

In 2024, 16,482 children formerly associated with armed forces or groups received protection or reintegration support, but numbers of violations against children still remain staggeringly high.

The Secretary-General called on all Member States to adhere to their obligations under international law by upholding the rights and special protections of children while also expanding services to treat children who are victims of conflict.

Ms. Gamba reiterated this call, saying that the increase in grave violations should be a “wake-up call” and reminding the international community that indifference to such violations will not bring peace.

“We face a choice that defines who we are: to care, or to turn away …  We all share the duty to act—with urgency, with determination—to bring this suffering to an end. Not tomorrow. Not someday. Today,” she concluded. 

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Yemen at breaking point as UN envoy urges action to end suffering

Speaking via videoconference, UN Special Envoy for Yemen Hans Grundberg said the country remains trapped in a prolonged political, humanitarian and development crisis.

Yemen is so much more than the containment of a threat,” he said. “The cost of inaction is high.”

Mr. Grundberg stressed the urgent need for progress towards a sustainable political solution, calling on all parties to show the will to move beyond the current deadlock.

Meanwhile, over 17 million people, nearly half of Yemen’s population, are estimated to be suffering acute malnutrition.

Without sustained humanitarian support, six million more could face emergency levels of food insecurity, said Joyce Msuya, Assistant Secretary-General of UN humanitarian wing (OCHA), speaking on behalf of Humanitarian Affairs chief Tom Fletcher.

Economic hardships

Yemeni citizens continue to shoulder the impact of an economy in freefall,” said Mr. Grundberg, calling for more international support to alleviate the humanitarian and economic hardships they face.

Despite operating under extremely difficult conditions, humanitarian efforts in Yemen continue, but the UN’s response remains constrained and far from meeting the scale of need, according to OCHA.

Still, there are signs of progress. “There is real scope to make progress on the economy,” said Special Envoy Hans Grundberg, pointing to the reopening last May of a key road between Aden and Sana’a, closed for nearly seven years, which has restored a faster and more direct route for civilians and commercial traffic.

“With trust and the right tools, there remains hope,” said Deputy Emergency Relief Coordinator Joyce Msuya.

Fragile frontlines

Marking one year since the arbitrary detention by Houthi rebels – or Ansar Allah – of dozens of aid workers, civil society representatives and diplomatic personnel, Mr Grundberg urged Security Council members to use their “powerful voices” to exert maximum pressure on the group for the unconditional release of the detainees.

While attacks on shipping in the Red Sea and counter measures by Western forces have largely abated since a cessation of hostilities agreement between the United States and the Houthi leadership, the group has launched several recent attacks targeting Israel, in solidarity with the Palestinian cause in Gaza.

With multiple frontlines still fragile and the risk of renewed fighting ever-present, the UN continues to work on a roadmap to help Yemen move beyond its divisions, secure a comprehensive ceasefire, implement critical economic measures and advance an inclusive political process.

Costa Rica’s refugee lifeline at breaking point amid funding crisis

“Without funding, asylum seekers are left in limbo – undocumented, unsupported and increasingly desperate,” said Ruvendrini Menikdiwela, Assistant High Commissioner for Protection.

Her comments follow a 41 per cent budget cut to the UN agency’s operations in the country that have had devastating consequences. “This is not about luxuries; the assistance we’re cutting is critical and lifesaving,” she insisted.

The Central American nation today hosts more than 200,000 refugees and asylum seekers – adding up to nearly four per cent of its population.

More than eight in every 10 are from Nicaragua, fleeing deepening political and social turmoil linked to serious allegations of “systemic repression”, according to independent rights experts reporting to the Human Rights Council.

Despite economic constraints, Costa Rica has continued to offer safety and hope to those escaping persecution, UNHCR said.

Safe spaces at risk

On a recent official tour of Costa Rica, Ms. Menikdiwela described meeting indigenous Miskito women who had fled gender-based violence and established safe spaces, despite language and cultural barriers. “Their courage is humbling,” she said. “But the loss of services threatens everything they’ve tried to rebuild.”

The UN agency  has warned that legal support, mental health services, education, job training and child protection initiatives have already been scaled back or suspended.

Many were tailored to vulnerable women and children in remote areas.

No right to a job, school or healthcare

Because of the cuts, the capacity to register new arrivals has plummeted by 77 per cent. But without documentation, refugees cannot legally work, attend school or access healthcare. With over 222,000 claims backlogged, some cases may now take up to seven years to process.

“The Government’s plea to me was simple,” Ms. Menikdiwela said. “‘Help us to help these people.’”

Costa Rica has long played a leadership role in regional and global refugee protection frameworks. But this solidarity is now stretched to breaking point, the UN agency said, in an appeal for $40.4 million to maintain its operations in the country Rica through 2025.

“This is a stark reminder that protection must be backed by resources,” Ms. Menikdiwela warned. “If the international community does not step up, the consequences will be severe – not just for those already in Costa Rica – but for stability in the wider region as well.”

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Two-State solution nearing point of no return, warns UN chief

Addressing a Security Council debate on Tuesday, António Guterres said the Middle East stands at a critical crossroads.

The promise of a two-State solution is at risk of vanishing altogether,” he said. “Political will to achieve that goal feels more distant than ever.

He stressed that this erosion undermines the rights of both Palestinians and Israelis to live in peace and security, while denying Palestinians their legitimate national aspirations.

Gaza crisis ‘beyond imagination’

Mr. Guterres expressed deep concern over the worsening crisis in Gaza, where nearly 2,000 Palestinians have been killed since the March ceasefire collapsed.

He condemned the ongoing blockade of aid – including food, fuel and medicine – which has pushed over two million people into a humanitarian emergency he called “beyond imagination.”

“I am alarmed by statements from Israeli officials suggesting aid is being used as leverage for military gain,” he said. “Aid is not a bargaining chip. It is non-negotiable.

He renewed calls for an immediate and lasting ceasefire, the unconditional release of all hostages, and full humanitarian access. He also underscored the need to uphold international law, protect UN personnel and facilities, and ensure accountability for attacks on aid workers.

Tensions in the West Bank

Turning to the West Bank including East Jerusalem, the Secretary-General described a worsening situation marked by Palestinian displacement, home demolitions, restricted movement and expanding Israeli settlements that are reshaping the territory in violation of international law.

Palestinians are being contained and coerced,” he said – contained in areas under growing military pressure and coerced out of others where settlements are expanding.

Settler violence continues to rise amid impunity, while Palestinian attacks on Israelis also persist in both Israel and the occupied West Bank.

Secretary-General Guterres briefs the Security Council.

A pivotal moment for peace

With the region in turmoil, Mr. Guterres urged countries to move beyond statements and outline specific steps to revive the two-State solution.

“This is not a time for box-ticking,” he said. “The clock is ticking – and time is running out.”

He called on the international community to prevent a future of endless occupation and violence through sustained and serious action.

Leaders must deliver

The Secretary-General highlighted the upcoming high-level conference co-chaired by France and Saudi Arabia as a key chance to reenergise international support.

I urge Member States to go beyond declarations and consider concrete steps to save the two-State solution – before it disappears altogether,” he said.

“At this hinge point in history, leaders must show courage, act with resolve, and deliver peace for Palestinians, Israelis, the region, and the world.”

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