Sir Keir Starmer arrives in Washington for talks with President Trump - and repeats calls for security guarantee for Ukraine

Prime Minister Sir Keir Starmer has arrived in Washington for talks with President Trump, discussions that could help shape the relationship between the UK and the US for the next four years.

In a short speech at the British ambassador's residence he was keen to emphasise the things the two countries have in common.

"We want to work with you, we want to welcome you to Britain," he said. "We want a new partnership, because our history shows that when we work together great things happen."

On Wednesday, the prime minister had brushed aside growing tensions between the White House and Europe over Ukraine, saying he trusted Donald Trump and wanted the "special relationship" to go "from strength to strength".

Speaking to reporters ahead of the White House meeting, Sir Keir insisted that the UK was working "in lockstep" with the president on the matter of Ukraine.

Asked if he could trust President Trump in light of what has happened in recent weeks, the prime minister replied "yes".

"I've got a good relationship with him," Sir Keir said.

"As you know, I've met him, I've spoken to him on the phone, and this relationship between our two countries is a special relationship with a long history, forged as we fought wars together, as we traded together.

"And as I say, I want it to go from strength to strength."

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Even before Sir Keir arrived in Washington, the choreography of the trip hit a little turbulence as President Trump appeared to pour cold water on the prospect of a US military backstop for Ukraine as part of any peace deal - a key UK and European demand.

"I'm not going to make security guarantees beyond very much," Mr Trump said at his first cabinet meeting on Wednesday.

"We're going to have Europe do that because Europe is the next-door neighbour."

His remarks seemed at odds with those made by the prime minister on the way to Washington as he reiterated how important a US military backstop was for Ukraine.

"We all want a peaceful outcome," the prime minister said.

"It's got to be a lasting peace, and that requires us to put in place an effective security guarantee.

"Exactly what the configuration of that is, exactly what the backstop is, is obviously the subject of intense discussion."

He added: "But the reason I say the backstop is so important is that the security guarantee has to be sufficient to deter Putin from coming again because my concern is if there is a ceasefire without a backstop, it will simply give him the opportunity to wait and to come again because his ambition in relation to Ukraine is pretty obvious, I think, for all to see."

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While European allies such as the UK and France are preparing to put peacekeeping troops on the ground to police the Ukraine-Russian borders, leaders have been clear that US support is essential to containing President Putin and securing that support is the key purpose of the prime minister's trip to Washington.

President Zelenskyy has also demanded that clear guarantees of US military backing and security be part of his deal with the US on critical minerals, but a framework agreed this week by both sides did not include an explicit reference to any such support.

Ahead of the trip to Washington, the prime minister pledged to increase UK defence spending - a key ask of all NATO members by President Trump - and reiterated his commitment to putting British boots on the ground in Ukraine as he attempts to lower tensions between Europe and the US and demonstrate to President Trump that the UK is willing to play its part.

"When it comes to defence and security, we have for decades acted as a bridge because of the special relationship we have with the US and also our allegiance to our European allies," Sir Keir said.

"I've been absolutely resolute that we're not going to choose between one side of the Atlantic and the other. We will work with the US, we will work with our European allies, that's what we've done for decades, and it's what we'll do whilst I'm prime minister."

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Sir Keir also gave the British public a "message of reassurance" after his decision to accelerate defence spending in the face of Russian aggression, saying he had done it to "ensure their safety" and increased investment would bring opportunities.

"I want to reassure the British public that what we're doing is to ensure their safety, their security and defence of our country.

"I want to also be clear that this is an opportunity because, as we increase defence spending, then that gives an opportunity for our industrial strategy, for jobs across the UK, good well-paid jobs in defence."

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