King Charles let Joe Biden take the lead today as the pair met at Windsor Castle following the President’s short summit with Rishi Sunak in Downing Street.
The US President, 80, arrived to talk with the King about climate change after spending just42 minutes with the Prime Minister in London.
Mr Biden walked in front of the King as he inspected a guard of honour formed by the Welsh Guards in the quadrangle at the castle.
Both men seemed relaxed in each other’s company, as pictures showed them laughing and joking.
The President, who is out to try to quash previous accusations of being ‘anti-British’, was also treated to a rendition of the US national anthem before the two men spoke about climate change inside the Castle.
President Biden walks in front of King Charles as the pair inspect the Welsh Guards at Windsor Castle today
The President walked slightly in front of the King as they inspected the Welsh Guards
The President’s meeting with the King today came after a phone conversation earlier this year that Biden’s national security adviser, Jake Sullivan, described as ‘incredibly warm’.
Earlier, in his meeting with Mr Sunak, the President told reporters relations were ‘rock solid’ as he looked to get away from any perception that he does not hold the UK in high regard.
However, the discussion at Number 10 was very much a flying visit as Biden left in less than an hour.
Mr Biden last had formal talks with Charles at the COP26 climate summit in Glasgow in November 2021.
He attended the state funeral of Charles’s mother, Queen Elizabeth II, in September, but did not go to the Coronation – with his wife, Jill, attending instead.
Mr Sullivan said the President has ‘huge respect’ for the King’s commitment on the climate issue in particular.
He said Charles has been a ‘clarion voice’ on climate and ‘someone who’s mobilised action and effort.’
‘So the President comes at this with enormous goodwill,’ Sullivan told reporters yesterday as Biden flew to London.
Once inside the Castle, Mr Biden and the King joined participants of the Climate Finance Mobilisation forum.
The group were led by Energy Secretary Grant Shapps and Mr Biden’s climate envoy John Kerry, among others.
After departing Windsor, Mr Biden made his way to Stanstead Airport to fly to Lithuania ahead of a Nato summit in which the war in Ukraine and the US decision to send cluster bombs to the country will be high on the agenda.
Mr Biden’s meeting with Mr Sunak came amid mounting frustration that he is largely ignoring the UK’s views.
More flashpoints have emerged over recent days, with Mr Biden pouring cold water on the idea of Ukraine joining Nato anytime soon.
US President Joe Biden met King Charles at Windsor Castle today during a 24-hour trip to the UK
The pair were comfortable in each other’s company as they walked and laughed together
The US President, 80, was seen shaking hands with the 74-year-old monarch before they made their way to the castle lawn for a rendition of the US national anthem courtesy of the Welsh Guards
President Biden walks in front of the King as they inspect the Welsh Guards at Windsor Castle
Friendly: US President Joe Biden and King Charles enjoy a warm handshake at Windsor today
The monarch steps out of the Sovereign’s Entrance at Windsor ahead of his meeting today
King Charles III and US President Joe Biden in the Grand Corridor at Windsor Castle
Energy Secretary Grant Shapps speaks as King Charles and the President stand and listen inside Windsor Castle
King Charles and Mr Biden meet with participants of the Climate Finance Mobilisation forum at Windsor Castle
Biden joins King Charles in inspecting the Welsh Guards at Windsor Castle
The King chats to a beaming Mr Biden as they walk together at Windsor Castle today
Mr Biden is welcomed into Windsor Castle by King Charles today
President Biden pats the King’s back as the pair prepare to listen to the US National Anthem
Chatting away: Mr Biden and King Charles beam as they walk through the quadrangle at Windsor Castle
King Charles III and The President of the United States, Joe Biden walk together in the Quadrangle at Windsor Castle
The King and Mr Biden laugh together today as they chat ahead of their sit down meeting
King Charles and Joe Biden walk together in the quadrangle at Windsor Castle
The Welsh Guards are seen in formation ahead of the meeting between King Charles III and Mr Biden
Mr Biden and the King inspect the guard of honour formed by the Welsh Guards at Windsor Castle
The US president, 80, was seen shaking hands with the 74-year-old monarch at Windsor
King Charles III and US President Joe Biden inspect the Guard of Honour from the Prince of Wales’s Company of the Welsh Guards
Biden places his hand on his heart as he listens to a rendition of the US national anthem
Earlier, he sat down with Rishi Sunak in the Downing Street garden and told reporters relations were ‘rock solid’ – as he tries to quash his ‘anti-British’ reputation
He has also put Mr Sunak in an awkward position by declaring the US will supply Kyiv with cluster bombs – weapons the UK is committed to shunning.
And the pair may have had exchanges over the next head of Nato, after Mr Biden seemingly blocked the ambitions of Defence Secretary Ben Wallace and backed the EU’s Ursula von der Leyen for the top job.
Tory MP David Jones told MailOnline engagement was useless if there was no ‘positive response’.
‘The PM should remind him which country is America’s strongest ally,’ he added.
As the leaders sat down on rattan furniture in the Downing Street garden, Mr Biden told Mr Sunak he ‘couldn’t be meeting with a closer friend and greater ally’.
‘Our relationship is rock solid,’ he said.
Mr Sunak said the pair would consider ‘how do we strengthen our co-operation, joint economic security to the benefit of our citizens’.
He added: ‘We stand as two of the firmest allies in that alliance and I know we’ll want to do everything we can to strengthen Euro-Atlantic security.’
Mr Biden is said to be pushing for the current European Commission president to take charge of the military alliance.
But MPs complained that he is ‘being a d***’, after apparently being angered by Britain failing to get his approval to train Ukrainian pilots for F-16 fighter jets.
Conservatives have warned that Ms von der Leyen was the ‘worst ever’ German defence minister before becoming commission president.
King Charles and Mr Biden chat together as officials look on at Windsor Castle today
The pair appeared to be on relaxed terms with each other as they chatted at Windsor Castle
The Prince of Wales’s Company of the Welsh Guards arrives ahead of a meeting between King Charles III and the President of the United States, Joe Biden
A Metropolitan Police helicopter escorts Marine One – the presidential helicopter – on its way to Windsor Castle
President Joe Biden disembarks from Marine One to board Air Force One at Stansted airport after meeting the King
On her watch Berlin’s troops notoriously trained with broomsticks on Nato exercises because they did not have enough rifles.
Mr Biden told CNN in an interview broadcast as he set off on his journey that Ukraine was not ‘ready for membership’ in NATO.
‘I don’t think there is unanimity in NATO about whether or not to bring Ukraine into the NATO family now, at this moment, in the middle of a war,’ he said.
He noted that NATO members are committed every inch of each other’s territory, while war is raging inside Ukraine.
‘If the war is going on, then we’re all in war,’ he said.
His tone appeared far more downbeat than the UK, which has urged a positive message on the prospects for Ukraine joining Nato.