Donald Trump has sparked fresh outrage in the UK after saying Nato troops stayed “a little off the front lines” during the war in Afghanistan.

Labour MP Emily Thornberry, the chair of the foreign affairs committee, called it an “absolute insult” to the 457 British service personnel killed in the conflict, while Liberal Democrat leader Sir Ed Davey said: “How dare he question their sacrifice?”

Conservative MP Ben Obese-Jecty, who served in Afghanistan, said it was “sad to see our nation’s sacrifice, and that of our Nato partners, held so cheaply”.

The UK was among several allies to join the US in Afghanistan from 2001, after it invoked Nato’s collective security clause following the 9/11 terror attacks.

The US president told Fox News on Thursday that he was “not sure” the military alliance would be there for America “if we ever needed them”.

“We’ve never needed them,” he said, adding: “We have never really asked anything of them.”

“They’ll say they sent some troops to Afghanistan,” he said, “and they did, they stayed a little back, a little off the front lines”.

He said the US had “been very good to Europe and to many other countries”, adding: “It has to be a two-way street.”

Thornberry told the BBC’s Question Time that the remarks were “much more than a mistake”.

“It’s an absolute insult… How dare he say we weren’t on the front line, how dare he?

“We have always been there whenever the Americans have wanted us,” she said, calling Trump “a man who has never seen any action” but was now “commander in chief and knows nothing about how it is that America has been defended”.

She said the US was the UK’s “friend” but its leader had “behaved in a way that is bullying, rude, that has deliberately been trying to undermine us, which has been trying to undermine Nato.”

On the same programme, Conservative shadow cabinet member Stuart Andrew also called the comments “disgraceful” and “appalling”.

“There are many people in this country who served both in Iraq and Afghanistan, many of whom lost their lives, but also many more who came back with life-changing injuries and we should say thank you to them.”

He added that the UK-US special relationship was important for both defence and security, and that in recent weeks Trump had directed conversation to the security of the Arctic – where he said there was a “very serious threat”.

Sir Ed wrote on social media that Trump had “avoided military service”, adding: “How dare he question their sacrifice?”

Speaking to BBC’s Newsnight programme, Dutch foreign minister David van Weel rejected Trump’s remarks as “false”, saying “Europeans shed blood” in support of US troops in Afghanistan.

He said Nato Secretary General Mark Rutte had rebuffed similar comments Trump made earlier, during a joint press conference the pair held at Davos on Thursday.

Asked about the US president repeating the claim, van Weel, said: “We should speak out for the truth as Mark Rutte did. And if he repeated it, we need to repeat it again because that’s not how history went.”

Meanwhile, former British Army officer Obese-Jecty said it was “sad to see our nation’s sacrifice, and that of our Nato partners, held so cheaply by the president of the United States”.

“I saw first hand the sacrifices made by British soldiers,” he wrote on X.

“I don’t believe US military personnel share the view of President Trump; his words do them a disservice as our closest military allies.”

Calvin Bailey, a Labour MP and former RAF officer who served alongside US special operations units in Afghanistan, said the president’s claim bore “no resemblance to the reality experienced by those of us who served there”.

“As I reminded the US Forces I served with on 4 July 2008, we were there because of a shared belief, articulated at America’s founding, that free people have inalienable rights and should not live under tyranny,” he told the PA news agency.

“That belief underpinned the response to 9/11, and it is worth reflecting on now.”

The BBC approached the Ministry of Defence for comment.

A spokesperson pointed to comments made by Defence Secretary John Healey while visiting Nato ally Denmark on Wednesday – before Trump’s comments.

He said: “In Afghanistan, our forces trained together, they fought together, and on some occasions, they died together, making the ultimate sacrifice.”

The US invaded in October 2001 to oust the Taliban, whom they said were harbouring Osama Bin Laden and other al-Qaeda figures linked to the 9/11 attacks. Nato nations contributed troops and military equipment to the US-led war.

More than 3,500 coalition soldiers had died as of 2021, when the US withdrew from the country – about two-thirds of them Americans.

The UK suffered the second highest number of military deaths in the conflict behind the US, which saw 2,461 deaths.

The US is the only country to have invoked the collective security provisions of Nato’s Article 5, which states that “an armed attack against one Nato member shall be considered an attack against them all”.