We can bring you more of Donald Trump's 280-word post now, which - as we mentioned previously - appears to mark a major change in his position on Ukraine.

"After getting to know and fully understand the Ukraine/Russia Military and Economic situation and, after seeing the Economic trouble it is causing Russia, I think Ukraine, with the support of the European Union, is in a position to fight and WIN all of Ukraine back in its original form," Trump writes.

"With time, patience, and the financial support of Europe and, in particular, Nato, the original borders from where this war started, is very much an option. Why not?"

He says Russia has been "fighting aimlessly" for three-and-a half-years, in a war he says should have taken "less than a week to win".

He adds: "This is not distinguishing Russia. In fact, it is very much making them look like 'a paper tiger'."

He says Vladimir Putin and Russia are "in BIG Economic trouble, and this is the time for Ukraine to act".

Trump concludes his post by wishing both countries well, but adds that the US will "continue to supply weapons to Nato for Nato to do what they want with them. Good luck to all!"

Donald Trump has just signalled what appears to be a major shift in his position on the Ukraine war - and what might happen if and when the fighting ends.

Posting on his Truth Social platform, he says: "I think Ukraine, with the support of the European Union, is in a position to fight and WIN all of Ukraine back in its original form."

We'll bring you more on this shortly.

Image source, EPA

Trump spoke at length during his UN General Assembly about Iran, saying "my position is very simple",

"The world’s number one sponsor of terror cannot be allowed to possess the most dangerous weapon," Trump said.

He added that after taking office in January, he sent Iran's Supreme Leader Ayatollah Khamenei an offer of full cooperation in exchange for the suspension Iran's nuclear programme.

The US president claimed most of Iran's top military leaders were now dead, and talked about having "demolished" Iran's nuclear capacity with the US strike on facilities earlier this year.

Khamenei has responded to say Iran does not need nuclear weapons and nor does Tehran intend to produce them.

"Iran will not surrender to pressure regarding uranium enrichment," Khamenei says.

Shortly before the talks with Zelensky, Trump also met Argentinian President Javier Milei.

The two shook hands and posed for photographs. Trump also held up a print-out of a post he shared on his Truth social platform endorsing Milei for re-election.

Image source, Reuters

Image source, Reuters

A key message of Trump's speech - it's my way or the highwaypublished at 19:40 BST 23 September

19:40 BST 23 September

Anthony Zurcher
North America correspondent

Donald Trump’s speech to the UN didn’t so much offer a global vision as deliver words of warning - follow America’s lead on immigration and energy, or face ruin.

On immigration, he called it the "number one political issue of our time".

He said Western nations were being destroyed by immigration and accused the UN of supporting the cross-border movement of peoples through its aid to refugees. He said the people that built great nations – who put "blood, sweat and tears into that country" - were being asked to bear the burden of supporting new arrivals.

If Trump’s immigration comments covered familiar ground, his remarks on the environment were notable for their intense derision. He called the theory of manmade climate change a "con job", a "scam" and a "hoax". He said the real agenda was to erode the manufacturing prowess of developed nations.

"If you don’t get away from this green scam, your country is going to fail," he said.

The president seemed to direct most of his comments to Europe, which he said he loved. With many of the continent’s nations facing growing right-wing populist movements of their own, Trump’s speech could be viewed first and foremost as a bid to boost the prospects of Trump-style politics and policies abroad.

"I’ve come here today to offer the hand of American leadership and friendship to any nation in this assembly that is willing to join us in forging a safer and more prosperous world," he said midway through his speech.

A more concise version of that would have been, simply: "It’s my way or the highway".

Pratiksha Ghildial
Reporting from the UN

Image source, Pratiksha Ghildial / BBC

Before President Trump spoke here at the UN, I encountered a group of protesters on Fifth Avenue.

Dozens of them were lined up on both sides of the road and holding placards with "Shutdown Trump" and "Reject Trump" written on them.

Police officers were walking alongside them trying to keep them contained to the sidewalk.

Some were wearing colourful costumes including one dressed as Eric Cartman from the popular animation series South Park (purportedly a reference to the series having recently spoofed the president, with a plotline involving Trump being in a romantic relationship with Satan).

Continuing to take questions from reporters - alongside Ukraine's Zelensky - Trump says "the Russian economy is terrible right now... it is crashing".

"Ukraine is doing a great job at stopping this frankly large army. It is pretty amazing," he adds.

"It is a war that should have ended in three days, people were saying it was going to be very quick - but you have got to hand it to the Ukrainian soldiers and everybody involved.

"Russia doesn't look very distinguished. Taking three-and-a-half years of very hard fighting and it looks like it is not going to end for a long time."

Image source, Getty Images

We can bring you more now from Donald Trump's meeting with Ukrainian President Volodymyr Zelensky.

Asked by a journalist about a drone incursion in Denmark that stopped flights at Copenhagen airport on Monday night, Trump says he heard about the event but has "no response until I find out exactly what happened".

• Earlier today, the Danish prime minister said Russian involvement could not be ruled out. Kremlin spokesperson Dmitry Peskov called the allegations "unfounded"

Asked next whether he would back up Nato allies in the event they shot down Russian aircraft, Trump replies: "Depends on the circumstances. But we're very strong towards Nato."

Trump unequivocal on action against Russian aircraft - but short on specifics about US involvementpublished at 19:05 BST 23 September

19:05 BST 23 September

Bernd Debusmann Jr
Reporting from New York

Image source, Getty Images

For the last few hours, I've been running back and forth to catch a few minutes' worth of bilateral meetings between Trump and a host of world leaders, including Zelensky, Ursula von der Leyen, Guterres and Milei.

In stark contrast to his earlier speech, Trump has been polite and full of praise for these leaders, and his comments have been, overall, much more positive in nature than his previous speech.

But he's also been short on specifics about what the US will do to address some of the issues he outlined today, whether it be on Argentina's economy or Ukraine. Much of his tone has been one of "wait and see".

The last meeting, with Zelensky, was very much like this.

On one hand, Trump responded without equivocation that he would support Nato countries shooting down Russian aircraft or drones that violate their airspace.

On the other hand, he did not specify in what circumstance the US would help in that scenario.

Similarly, he was vague when asked for an update on talks with Putin, saying he will let the world know "about a month from now."

It's something we've heard many times before, on a wide range of domestic and international topics.

Many keen Trump observers have described this as intentional, or "strategic ambiguity" in which he wants to keep his intentions hidden from most until it's time to execute.

But for many world leaders - including, one imagines, Zelensky and his European allies - that strategy creates uncertainty about how the role the US sees for itself.

Nato member states should shoot down Russian aircraft if they enter their airspace, Donald Trump says in response to a question from a reporter on the sidelines of the UN General Assembly in New York.

During a meeting with Ukrainian President Volodymyr Zelensky, Trump is asked whether he would support such action. He responds: "Yes I do."

• For context: On Friday, Estonia requested a consultation with other Nato members after Russian warplanes violated its airspace. Poland made the same request on 10 September after Russian drones entered its airspace

The US president has just taken a series of questions from reporters. The first was centred on his remarks about the United Nations not fulfilling its potential.

“Well, they've never really reached their potential," Trump says. "The UN could be unbelievable with certain people running it." He repeats his claim that he "put out seven wars" and says: "I wasn't helped by the UN."

"I mean, we shouldn't have any wars if the UN is really doing its job. I know they were involved originally with Russia, Ukraine, and that didn't get done because that was the time to stop it.”

Is Trump taking issue with green policies - or China?published at 18:25 BST 23 September

18:25 BST 23 September

Esme Stallard
Climate and science reporter

Image source, EPA

Despite deriding climate science as a “con”, it was unclear listening to Donald Trump’s speech whether his issue was with green policies or his biggest rival not doing more.

“China produces more CO2 than all the developed nations in the world, all these countries are working so hard on their carbon footprint," he said. He then finished with “which is nonsense by the way”.

Trump then lauded his country for having “the cleanest air we have had for many, many years”. The US has seen a 50% decline in air pollutants as a result of the introduction of the Clean Air Act, which brought in stricter environmental regulations on cars and industry, according to the government’s Environment Protection Agency, external.

Then he accused China of ruining this by sending dirty air to the US.

Despite declaring climate change was a “hoax”, he seemed to acknowledge its impacts.

He said that Europe was struggling with heat deaths. Scientists at the Barcelona Institute for Global Health have estimated that more than 181,000 people died from summer temperatures between 2022 and 2024, according to research published yesterday, external.

They said that due to a rise in global temperatures as a result of climate change, parts of Europe - the Mediterranean and south-eastern Europe - are expected “to experience a substantial increase” in deaths from heat.

I have no doubt President Trump wanted to use his speech to make clear he did not believe in human-caused climate change, but he seemed to be unable to avoid the overwhelming evidence it is real.

Trump makes false claim about 'Sharia law' in Londonpublished at 18:12 BST 23 September

18:12 BST 23 September

By Joshua Cheetham

During his speech at the UN General Assembly, President Donald Trump singled out London Mayor Sadiq Khan, claiming: "I look at London, where you have a terrible mayor – terrible, terrible mayor. Now they want to go to Sharia law."

If Trump is implying here that London - under Khan - is moving its legal system to Sharia law, then this is false.

There have been false claims about the implementation of Sharia law in London circulating for years on social media.

In 2020, several posts on Facebook showed an image of Khan with a quote saying: "We are trialling [Sharia] law in three of London's boroughs right now. We will then roll it out in the remaining thirty next year."

At the time, the mayor’s office told Reuters that this quote - which misspelled the word Sharia - was fabricated.

In response to Trump’s comment at the UN, UK Health Secretary Wes Streeting posted on X: "Sadiq Khan is not trying to impose Sharia Law on London."

A spokesperson for Khan told the BBC: "We are not going to dignify his appalling and bigoted comments with a response."

Sharia law is an Islamic legal system and Sharia councils do exist in the UK – there were an estimated 85 across the UK in 2009, according to one think tank.

Most of their work deals with religious marriage arbitration and they may also rule on financial matters but the UK government has been clear, external that their rulings are "not legally binding".

"Ultimately, the only places in our country that deliver legally binding rulings are our courts," said Justice Secretary Chris Grayling on Sharia councils in 2016.

Image source, Getty Images

Trump's first bilateral meeting for the day is with UN Secretary General António Guterres, and comes after the US president publicly criticised the institution and some of its key priorities.

Guterres says the United States is "essential" to UN and praises Trump for working toward "peace".

"We are entirely at your disposal to be able to work together toward a just peace."

Trump says his delegation was treated with "great respect" by UN staff and once again makes light of the faulty escalator he encountered.

"Our country is behind the United Nations 100%," he says.

"I think the potential of the United Nations is incredible... I may disagree with it sometimes but I am so behind it."

The two leaders did not take questions from the assembled press.

Trump attacks globalism in UN addresspublished at 17:48 BST 23 September

17:48 BST 23 September

Paul Adams
World Affairs correspondent

In the midst of her opening speech as President of the General Assembly, the former German foreign minister Annalena Baerbock had words of advice for the world leaders assembled before her.

"True leadership is not about imposing your will and putting others down," she said.

Minutes earlier, the UN Secretary General António Guterres had asked whether countries preferred a world of self-interest or cooperation.

Then Donald Trump arrived, blowing all such liberal talk out of the water.

Imposing his will is President Trump's forte.

He's also irresistibly drawn by the urge to put others down. Inevitably, he railed at the alleged weakness and corruption of his predecessor, Joe Biden.

Nor did he spare the UN, asking what it was for, complaining about its escalators and teleprompters (both of which, apparently, seemed to fail him) and even saying he could have done a better job of refurbishing the premises when he was merely a New York real estate magnate.

But globalism, in the shape of mass migration and the campaign to halt climate change, was his main complaint.

"The entire globalist concept, asking successful industrialised nations to inflict pain on themselves and radically disrupt their entire societies must be rejected completely and totally," he told his audience.

It was an uncompromising challenge, delivered with the president's characteristic lack of ambiguity.

No war between Egypt and Ethiopia for Trump to endpublished at 17:38 BST 23 September

17:38 BST 23 September

Image source, AFP via Getty Images

By Rupert Carey

Earlier, President Trump claimed to have "ended seven wars and in all cases they were raging with countless thousands of people killed".

He listed seven "wars" including between Egypt and Ethiopia.

However, there was no "war" here for the president to end.

There have long been tensions though over a dam on the River Nile.

Ethiopia's Grand Ethiopian Renaissance Dam was completed this summer with Egypt arguing that the water it gets from the Nile could be affected.

After 12 years of disagreement, Egypt's foreign minister said on 29 June that talks with Ethiopia had ground to a halt.

Trump said: "If I were Egypt, I'd want the water in the Nile." He promised that the US was going to resolve the issue very quickly.

Egypt welcomed Trump's words, but Ethiopian officials said they risked inflaming tensions.

No formal deal has been reached between Egypt and Ethiopia to resolve their differences.

• We've more on how many wars Donald Trump has really ended in our news article

Mark Poynting
Climate reporter

In his speech, Donald Trump repeatedly attacked the science of climate change, claiming it is the "greatest con job ever perpetrated on the world".

This is at odds with the overwhelming scientific consensus about the causes and impacts of rising temperatures.

"Human activities, principally through emissions of greenhouse gases, have unequivocally caused global warming," says the Intergovernmental Panel on Climate Change (IPCC), which is made up of hundreds of leading scientists.

Humans are releasing huge quantities of greenhouse gases, such as carbon dioxide, by burning fossil fuels and cutting down forests. These gases act like a blanket, trapping extra energy in the Earth’s atmosphere.

This basic concept has been understood for more than 100 years.

And the IPCC’s scientists clearly state: "Human-caused climate change is already affecting many weather and climate extremes in every region across the globe."

This has already led to "widespread adverse impacts… and damages to nature and people" which will continue to increase with further warming, they add.

Caitriona Perry
Chief Presenter, reporting from the UN

Listening to President Trump a short while ago, you'd be forgiven for thinking that he views the European Union as his biggest enemy, rather than a very close ally of the United States.

There was very little criticism in his speech for the countries that we regularly hear American presidents criticise, like China, Russia or Iran.

Most of his criticism was reserved for the EU, on things like climate policy and migration.

Trump says his lengthy address was "well received" by world leaders at the UN.

The speech "focused very much on energy and migration/immigration," he says. "I have been talking about this for a long period of time and this Forum, was the absolute best from the standpoint of making these two important statements."

He says the faulty escalator and teleprompter at the start of his address made the day "more interesting than it would have been otherwise."

Donald Trump broke a record for UNGA speech length earlier.

Each speaker is traditionally given 15 minutes to speak to the assembly.

How long did the US president take? A little over 56 minutes.

That's longer than any speech he, or indeed any US president, has ever given at UN.

That time was surpassed by former Palestinian leader Yasser Arafat, who notched up an hour and a half in 1974.

But both speeches are left in the dust by Fidel Castro, Cuba's former president, who once spoke at the UN for a staggering 269 minutes - nearly five hours.