As the UN General Assembly starts its second day, much attention will turn to the war in Iran, artificial intelligence and climate change. Follow live.
Artificial intelligence, the Iran war, and climate change set to dominate debate on second day of UN General Assembly
Trump was among the first speakers to take the stage and said he had a "big decision" to make on Iran, to either make a deal or "annihilate" the country
Gathering of world leaders takes place against a backdrop of global conflicts, environmental crisis and massive technical disruption
Read below for all the top headlines, videos and analyses on the 81 UN General Assembly from September 22-28, 2026:
Brazil, Germany, India and Japan renew calls for Security Council reform
The foreign ministers of Brazil, Germany, India and Japan on Wednesday called for the reform of the UN Security Council (UNSC), saying it was more urgent than ever.
"Given the increasingly challenging geopolitical environment, UNSC reform is more necessary than ever before," the four foreign ministers said in a joint statement issued after the diplomats met on Tuesday.
The Security Council is a 15-member body with five permanent members — China, France, Russia, the UK and US — known as the P5 and 10 rotating members elected to two-year terms by the General Assembly.
Permanent members enjoy veto powers, which often means the body is kept from carrying out resolutions due to conflicts with the interests of one or more of them.
UNGA day 2: AI, Iran war, climate to dominate debate
Beyond speeches by the presidents of Syria, Iran and Ukraine, artificial intelligence (AI), the US-Israeli war in Iran and the still-pressing issue of climate change are set to dominate the agenda at the United Nations General Assembly (UNGA) on Wednesday.
On day 2 of this 81st UNGA session, tech industry leaders Sam Altman (OpenAI), Dario Amodei (Anthropic) and Clement Delangue (Hugging Face) will brief an emergency meeting of the 15-member UN Security Council. Their attendance comes as international concerns — raised from within the industry — prompt debate over slowing AI development before the new technology potentially spins out of control with unknown consequences.
US President Donald Trump on Tuesday blasted calls to slow the technology as part of a "globalist scheme," brushing aside warnings that it could wipe out humanity within years if left unchecked.
After Trump used his General Assembly speech on Tuesday to threaten the annihilation of Iran and to drive its people to hell, the Islamic Republic's President Masoud Pezeshkian will directly address world leaders for the first time since the start of the war against Iran in February.
The conflict in Iran has settled into a hot stalemate, directly impacting neighboring states militarily and the entire globe economically.
Iranian and US representatives have met on the sidelines of the General Assembly in New York, but, as has been the case for months, a peace deal remains elusive and the flow of oil through the blockaded Strait of Hormuz stunted.
Russia's more than four-and-a-half-year full-scale assault on Ukraine will also be the topic of diplomatic debate on Wednesday, with a Security Council session scheduled for the morning and Ukrainian President Volodymyr Zelenskyy set to address the General Assembly in the afternoon.
Lastly, climate urgency is on the slate, with outgoing UN Secretary-General Antonio Guterres blasting fossil fuel giants for treating the Earth's atmosphere like an "open sewer" for emissions.
He further chided "big oil" for its greed as the world grapples with armed conflict.
"Since Russia's invasion of Ukraine, five major Western oil companies have pocketed nearly half a trillion dollars in profits," he said, noting that at the same time just $34 billion (€29.8 billion) had been invested in helping developing countries adapt to a warming world.
US top diplomat Rubio to meet Russian Foreign Minister Lavrov on Wednesday
US Secretary of State Marco Rubio will meet Russian Foreign Minister Sergey Lavrov in New York City on Wednesday morning, the US State Department said.
Ukrainian President Volodymyr Zelenskyy met with President Donald Trump at the UN headquarters on Tuesday to discuss an end to the 4-year-old war with Russia, including a potential bilateral ceasefire on energy-related targets.
UK's Andy Burnham: 'Britain is back'
In his debut as UK prime minister at the UNGA debate, Andy Burnham declared "Britain is back" 10 years after the country dealt with the turbulence caused by Brexit.
Burnham said the UK is "restoring our stability" and "building a more dynamic economy" while seeking trade and working together with other countries to tackle shared problems.
However, he said the UK needs to deal with forces of division and instability. He said this begins with Britain boosting its defense expenditures as a NATO member state and strengthening European capabilities.
Another issue Burnham addressed was disinformation being sowed online by Russia-aligned actors.
"Russian agencies have used every means at their disposal to spread lies and disinformation and prey on people's fear," Burnham said. "They've used bots and fake websites. Falsified newspaper articles. Forged the branding of 28 British organizations — including universities and the BBC. They've amplified far-right narratives."
The UK prime minister said there is evidence that Russia tried to interfere in the 2019 UK general election. He said the Kremlin spends around £1.3 billion ($1.7 billion, €1.5 billion) annually to sow disinformation.
As a solution, Burnham announced the National Centre for Information Defence to fight disinformation which hurts British interests.
Burnham also addressed the issue of AI, saying global standards are needed because "fundamental decisions on this technology are too important to be left to chance." Burnham said the UK will work on convincing other countries regarding rules on AI transparency and access to AI models.
Japan's mission is to lead efforts towards world without nuclear weapons, Takaichi says
Japan's conservative Prime Minister Sanae Takaichi said it her country's "mission" to lead efforts towards a "world without nuclear weapons."
She said this is because Japan is the "the only country to have ever suffered atomic bombings during war." The US atomic bombings of Hiroshima and Nagasaki during World War II in 1945 killed and maimed hundreds of thousands people, with the radiation causing illnesses in survivors in the years after.
Takaichi urged a stronger Nuclear Non-Proliferation Treaty regime. She also warned that North Korea's nuclear and missile programs along with other activities are a "serious threat to international peace and security."
In regards to technology, Takaichi said Japan intends to host an AI safety summit in the future.
The Japanese prime minister also called for a reform of the UN Security Council by expanding both the number of permanent and non-permanent members.
North Korea's vice foreign minister traveling to UNGA
North Korea's Vice Minister for Foreign Affairs Kim Son Gyong has departed from Pyongyang to attend the UN General Assembly debate in New York City, North Korean state media outlet KCNA reported.
It's unclear whether Kim will meet with officials from the Trump administration.
During his first term, Trump pushed for a deal where North Korea would give up its nuclear ambitions in exchange for sanctions relief.
Trump had met with North Korean leader Kim Jong Un in Singapore, Hanoi and the Korean Demilitarized Zone in 2018 and 2019 to discuss a possible deal, but ultimately a final agreement never materialized after talks broke down in Sweden in October 2019.
Zelenskyy meets Trump, says US and Ukraine want war to end before winter
Ukrainian President Volodymyr Zelenskyy met with US President Donald Trump on the sidelines of the UN General Assembly debate.
In a post on X, Zelenskyy characterized the meeting with Trump as "positive and productive."
"Both the US and Ukraine want to see this senseless Russian war ended before winter. We discussed potential de-escalatory steps that can open up the way to diplomacy," Zelenskyy said.
"I am grateful that in the meantime our teams keep working on launching Patriot interceptor production in Ukraine. This is what will help protect lives, should Russia spurn the negotiations and keep betting on ballistic missile terror against our people this winter and beyond," the Ukrainian leader added.
Zelenskyy said he also discussed a winter package of air defense for Ukraine with Trump, among other issues.
The negotiation process between Ukraine and Russia is still stalled, with US Special Envoy Steve Witkoff and Trump's son-in-law Jared Kushner visiting Moscow and Kyiv earlier this month to jumpstart the talks. It comes as Russia's full-scale invasion of Ukraine will hit its 5-year anniversary in February 2027.
In comments to journalists after the 40-minute meeting, Zelenskyy said the two leaders discussed an energy ceasefire. Zelenskyy said "we are ready for any kind of format of energy ceasefire" if Russia agrees to "not attack our energy system."
Trump has criticized Ukrainian attacks on Russian refineries. He has, without evidence, blamed the Ukrainian attacks for raising the price of diesel fuel, as the US war with Iran disrupts energy shipments from the Strait of Hormuz.
Macron calls for open-source AI model not dependent on US, China
Towards the end of his wide-ranging address, French President Emmanuel Macron said there was a need for nations to develop their own artificial intelligence (AI) capabilities so as not to be beholden to the US and China.
"France is proud to have a competitive frontier model" he said, likely referring to Mistral AI.
Macron said likeminded nations such as India, Brazil, Singapore, African nations and the Gulf states should pool not only their financial resources but also their data processing capacity.
"I don't want anyone to become the vassal of one of the great powers. Rather, we must come together to build an open-source frontier model, a cutting-edge model," he told the UN General Assembly.
"Our investment capabilities must be pooled to build a cutting-edge open-source AI model, which we will share. We should not depend on somebody else," he added.
Macron: 'Shame on all of us' of failing to do more for Gaza
French President Emmanuel Macron was addressing the General Assembly for the last time, as his term limit approaches and presidential elections beckon early next year.
He alluded to his previous visit to the event in New York, when a dozen countries including France announced plans to recognize Palestinian statehood.
"I understand that some of you are very cynical," Macron said, and some people would argue this recognition was only on paper and did not address the reality of the situation.
"But what is our credibility worth if we remain inactive on Gaza?" he asked. "Some claim that peace has been achieved, but this has not opened up humanitarian deliveries. The scenes, the spectacle, it is shameful. Shame on all of us!"
Macron said that what was needed was respect for the "legitimate rights" of the Palestinian people, arguing that this was a "prerequisite for security" not just for Palestinians but also for Israel.
"But all those who claim that Israel's security requires the violation of the sovereignty of all of its neighboring states are making a very fateful error," Macron said. "They are weakening Israel's security, today, and going forward. They are threatening Israel's security, in fact."
