Donald Trump has been invited by King Charles for a “historic” state visit to the UK, Sir Keir Starmer has said.
The prime minister presented the US president with a copy of the invitation while the pair met in the Oval Office.
Sir Keir and his US counterpart shared warm words as they spoke ahead of a press conference in which they are expected to reveal details of their discussions on the Ukraine war and trade.
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Mr Trump called Sir Keir a “special man” and a “great gentleman” as he said he would be visiting the UK in the “near future”.
Speaking to reporters from the Oval Office, president Trump said it was a “great honour to have Prime Minister Starmer at the Oval Office”.
“It’s a very special place, and he’s a special man – and the United Kingdom is a wonderful country that I know very well, I’m there a lot.”
He said the pair would discuss the Russia-Ukraine war, trade, and “lots of other items”.
“And I think we can say we are going to be getting along on every one of them,” the president added.
Sir Keir also made his own opening remarks and praised Mr Trump for “changing the conversation” on Ukraine “to bring about the possibility that now we can have a peace deal”.
“We want to work with you to make sure that this deal, is enduring, that it lasts, that it’s a deal that goes down as a historic deal that nobody breaches,” he said.
“And we’ll work with you, to make sure that that absolutely happens.”
The condition of a US security “backstop” to deter Vladimir Putin from future aggression has been a key demand of the UK and European allies, with the prime minister saying it was the only path to peace in Ukraine.
There had been concern that Mr Trump would stop short of providing the commitment after he said cryptically that he would not “make security guarantees beyond very much”.
Later in the exchange Mr Trump appeared to suggest that a planned deal with Ukrainian president Volodymyr Zelenskyy on minerals would effectively be a security “backstop”.
“President Zelenskyy is coming to see me on Friday morning. And we’re going be signing really a very important agreement for both sides because it’s really going to get us into that country, working there.”
He added it was” a backstop, you could say”.
The apparent positive exchange bodes well for the prime minister, who has been seeking to act as a bridge between the US and Europe, who appear to be increasingly at odds over the ongoing war in Ukraine.
Other issues that the two leaders are poised to discuss is the contentious Chagos Islands deal, in which the Indian Ocean archipelago would be transferred to Mauritius after a decades-long dispute.
The agreement includes the tropical atoll of Diego Garcia, home to a UK-US military base that plays a crucial role in the region’s stability and international security.
Under the proposed agreement, the UK would lease back Diego Garcia for 99 years at a reported annual cost of around £90m.
Although the Biden administration welcomed the deal as a “win for diplomacy”, Donald Trump’s White House has expressed reservations about the deal owing to its concerns over China’s influence in Mauritius.
The US president was asked whether he agreed with the deal, to which he replied: “Well, we’re going to have some discussions about that very soon.
“And I have a feeling it’s going to work out very well. They’re talking about a very long term, you know, powerful lease. A very strong lease. About 140 years, actually. That’s a long time. And, I think we’ll be inclined to go along with your country.
He added: “We have to be given the details, but it doesn’t sound bad.”
Some disruption to the warm music came when JD Vance, the vice president, suggested free speech in the UK was under threat.
Mr Vance recently criticised the UK and other European countries during an incendiary speech at the Munich Security Conference earlier this month, where he said there had been “backsliding” on free speech and democracy.
Donald Trump’s number two said that although the US had a “special relationship with the UK and our European friends”, there have been “infringements on free speech” which affected US tech companies.
Sir Keir disputed the vice president’s account, saying: “We’ve had free speech for a very long time, it will last a long time, and we are very proud of that.”