President Trump has spoken warmly about King Charles III ahead of the monarch and Queen Camilla’s state visit to the White House, calling him a gentleman and a friend. The four-day trip, scheduled as part of events marking 250 years since American independence, went forward after a last-minute security review following a shooting at the White House Correspondents’ Dinner.
The visit unfolds against visible tensions between Washington and London, most notably over responses to the war in Iran. Trump has publicly rebuked the UK for not matching U.S. and Israeli actions more closely, repeatedly criticizing Prime Minister Keir Starmer for refusing to send military support. While Britain has permitted U.S. use of some bases for Iran-related operations, Starmer has stressed that Britain will not treat the conflict as its own and has expressed frustration with its consequences for the UK.
Other sources of strain include London’s plan to transfer control of the Chagos Islands to Mauritius, a move that affects a U.S. military presence there and drew sharp criticism from Trump. He has also urged the UK to open more North Sea oil and gas drilling and threatened tariffs in response to Britain’s digital services tax targeting tech companies.
Although the sovereign must remain above party politics and will not negotiate policy, the British monarchy remains an important element of the UK’s soft power—a quality Trump appears to respect, in part because of family ties to Scotland and his longstanding favorable comments about the late Queen Elizabeth II. King Charles is scheduled to address a joint session of Congress, making him only the second British monarch to do so. When Queen Elizabeth addressed Congress in 1991, she highlighted democracy, international cooperation and institutions like the U.N. and NATO, and praised U.S.-UK collaboration in the Gulf War.
This state visit therefore carries a different tone: it seeks to reaffirm historic ties even as leaders on both sides disagree sharply over policy. The palace says Charles’s remarks will touch on NATO and aim to refresh the partnership between the two countries, even with major diplomatic differences unresolved.