King Charles III addressed a joint session of the United States Congress on Friday, becoming the first reigning British monarch to do so, in a carefully choreographed moment of diplomatic symbolism amid growing strain between Washington and its European allies. Speaker Mike Johnson welcomed the King to the House chamber, where members of both parties offered a standing ovation as Charles took the podium.
The address, lasting approximately 25 minutes, emphasised the enduring 'special relationship' between the United Kingdom and the United States, touching on shared history, trade, and the importance of multilateral institutions. Aides to both governments had worked for weeks to craft language that would resonate with President Trump's administration without alienating European partners already alarmed by Trump's recent comments about potentially withdrawing from NATO commitments.
Charles stopped short of directly addressing the NATO rift, but his remarks were laden with implicit appeals for Western unity, referencing the sacrifices of World War II and the post-war international order built jointly by Britain and America. 'The ties that bind our nations are not merely of convenience, but of conscience,' the King said, drawing prolonged applause from both sides of the aisle.
President Trump, seated in the front row alongside First Lady Melania Trump, met privately with King Charles at the White House earlier in the day. A readout from the White House described the meeting as 'warm and productive,' with discussions covering trade negotiations following the UK's post-Brexit economic repositioning and defence cooperation. Buckingham Palace said the King conveyed 'His Majesty's deep commitment to the alliance.'
British Prime Minister Keir Starmer, who accompanied the King on the visit, held parallel talks with Secretary of State Marco Rubio, where the ongoing conflict in the Middle East and the UK's role in humanitarian corridors were said to dominate discussions. Analysts noted the visit was as much about managing Trump as celebrating history, with London acutely aware that a fraying trans-Atlantic relationship poses serious risks to British security guarantees.