The United Nations General Assembly (Unga) is getting under way in New York City - our North America editor takes you through what to expect
Nearly 130 heads of state and government attend the annual week-long event to deliver a message from their nation to the world - watch live coverage above
US President Donald Trump is one of the first due to speak, with France's Emmanuel Macron and Turkish President Recep Tayyip Erdoğan also on today's schedule
Elsewhere, Trump will have his first face-to-face meeting with UK Prime Minister Andy Burnham, who has said he hopes the pair can find "common ground"
Some leaders have already been pictured having talks, with Macron and Ukrainian President Volodymyr Zelensky seen together last night. Earlier, Burnham walked through Central Park with Spanish PM Pedro Sanchez
Image source, AFP via Getty ImagesBrazil's President Lula da Silva will be the first world leader to speak later today
Image source, AFP via Getty ImagesKeiko Sofia Fujimori Higuchi was elected as Peru's President in June this year
Image source, AFP via Getty ImagesPresident Zelensky arrived at the event after visiting the 9/11 memorial
Paul Adams
Diplomatic correspondent, in Kyiv
As President Zelensky prepares to meet President Trump in New York later today - and as explosions are once again audible here in Kyiv - his wish list is a familiar one. “We…raised our need for ballistic missile interceptors and the challenges we face ahead of the coming winter,” Zelensky posted on X after meeting US senators.
The approaching winter is looming large in everyone’s minds. Last winter was the toughest so far and Ukraine wants to garner as much practical support as it can to get through the next. With American-made Patriot missile interceptors in short supply, the president is looking for other solutions.
Earlier, he said he was willing to use EU loan money to purchase French-made SAMP/T air defence equipment, and thanked France’s Emanuel Macron for his support for a joint European Ukrainian anti-ballistic missile programme known as Freyja.
Zelensky will also be hoping that Trump will indicate a willingness to use his powers under the Sanctioning Russia Act - passed by the House earlier this month and signed by the president four days ago – to put more economic pressure on Russia and countries that continue to buy its energy products.
Image source, EPAUkraine needs more ballistic missile interceptors to thwart Russian strikes on its territory
Ukraine's President Volodymyr Zelensky has laid flowers at the former site of the World Trade Center in New York. He was pictured in all black attire, paying respects at the memorial to those killed in the terror attacks of 11 September, 2001.
Zelensky will meet Donald Trump later on Tuesday to discuss the war in Ukraine.
Image source, Reuters
Pratiksha Ghildial
Reporting from New York
Image source, EPAIn just over half an hour, the UN secretary general will open this year’s General Debate of the 81st UN General Assembly, presenting his annual report on the work of the organisation.
This will be the last time Antonio Guterres will address the annual gathering of world leaders as UN chief. He is due to step down at the end of the year and the selection process for the next secretary general is under way.
Expect him to touch upon conflicts in Iran and the wider Middle East and also one of his signature projects - the threats posed by AI.
UN Secretary General Antonio Guterres will deliver his annual report on the first day of this year's General Assembly, before the assembly's President Khalilur Rahman formally opens debate.
There will be two sessions, with the first running from 09:00 to 14:45 ET (14:00 BST to 19:45 BST).
Brazilian President Luiz Inácio Lula da Silva will kick off the first session, followed by a speech from US President Donald Trump.
We will also hear from King Abdullah II of Jordan, Turkish President Recep Tayyip Erdoğan, and the French President Emmanuel Macron.
The afternoon session will be held from 15:00 to 21:00 ET (20:00 BST to 02:00 BST), starting with the president of Mongolia Ukhnaagiin Khürelsükh and South Korea's President Lee Jae Myung.
UK Prime Minister Andy Burnham is set to speak late on Tuesday, and is expected to focus on the opportunities and dangers posed by developments in artificial intelligence.
Image source, EPA/ShutterstockOfficials held a final preparatory meeting at the Danish Consul General's residence in Manhattan on Monday
Image source, Reuters
Image source, ReutersAndy Burnham met Spanish counterpart Pedro Sanchez for a stroll in Central Park this morning before the two leaders held a private meeting.
Photos show Burnham in conversation with Spain's PM as they stood in front of skyscrapers towering over the Manhattan park.
Chris Mason
Political editor, travelling with the prime minister
Andy Burnham has woken here in New York to the prospect of this being one of those talking-to-the-archive days. Moments on camera with the potential to be replayed on the loop of his emerging prime ministerial story.
There is the key first face-to-face encounter with President Trump in a few hours’ time. You don’t need to be steeped in political minutiae to spot the potential peril lurking for him there.
Later, a meeting’s expected with Ursula Von Der Leyen of the European Commission.
He will urge her not to use protectionist measures designed to counter China to freeze UK firms out of European contracts.
The prime minister has reflected that Brexit not only created “turbulence” as he put it, but claims “outside actors” sought “to manipulate, to distort facts” and “influence the democratic process” and the UK must be more “clear eyed” about these threats in the future.
Image source, ReutersUK Prime Minister Andy Burnham will have his first face-to-face meeting with Donald Trump at the United Nations in New York later today.
Burnham has travelled to the US with his wife, Marie-France van Heel, for a day of diplomacy and a speech to the UN General Assembly, which is expected to focus on the opportunities and dangers associated with artificial intelligence.
The prime minister told reporters on his flight that he expects to find "common ground" with the president, and he believes the relationship between the UK and US is "as strong as it's ever been".
The two men have spoken by phone twice since Burnham became prime minister in July, with Downing Street saying those calls established a "productive relationship".
Image source, ReutersThe United Nations is an international organisation which was formed after the end of World War Two with the aim of maintaining international peace.
The UN General Assembly is the organisation’s main meeting, during which member states discuss a range of international issues.
It is the only meeting at which all of the 193 UN members are represented and takes place every September at the UN's headquarters in New York.
The gathering also sees the appointment of the new secretary-general on the recommendation of the Security Council, as well as the election of the non-permanent members of that all-important body.
The UN’s budget will also be approved. Part of the meeting includes the general debate, during which representatives from every country in the UN can speak, to raise matters which concern them.
Bernd Debusmann Jr
Traveling with the president
Image source, ReutersIt’s early morning in New York City, where US President Donald Trump has a packed schedule ahead of him.
In a short while, the president will leave Trump Tower to head to the UN, where he is scheduled to deliver remarks at 09:55 ET/14:45 BST.
Administration officials have signalled that much of his speech will focus on what, in his opinion, the US has done to confront challenges around the world, including Iran’s nuclear programme.
Additionally, he is also likely to reiterate long-standing grievances against the UN and some of its member states over topics ranging from climate change to migration, and markets will be watching for any commentary on energy supplies or AI.
Following the speech, Trump has a long series of back-to-back meetings and events, including an event to sign a deal over Greenland, meetings with the UK and Japan’s prime Ministers, Ukraine’s Volodymyr Zelensky and Gulf leaders.
Notably, some of these events will take place without TV crews from the White House press pool which have pulled out of coverage in solidarity with CNN, which Trump has banned from the White House along with Politico and MSNOW.
Stay with us for more updates.
The world's signature diplomatic event is taking place in the shadow of a host of thorny issues. Among them, wars raging in the Middle East, Ukraine and Sudan - and mounting fears over the threats posed by rapidly advancing AI.
Here the BBC's North America editor Sarah Smith looks at what - and who - will be making the headlines.
Image source, ReutersWorld leaders have descended on New York for the 81st session of the UN General Assembly.
This year's annual event brings together nearly 130 leaders under the theme, “Restoring trust, managing transformation: a United Nations that delivers for all”.
Today we are expecting to hear from UN Secretary-General, António Guterres, who will present his annual report at the event's opening.
This will be followed by speeches from US President Donald Trump, French President Emmanuel Macron and UK Prime Minister Andy Burnham later in the day.
Stick with us as we bring you latest from today's proceedings.
