King Charles urges US and UK unity amid global turmoil in Congress speech

King Charles III used a rare address to Congress to cast the U.S.-U.K. alliance as a stabilizing force in a dangerous era, telling lawmakers the relationship was “truly unique” and “more important today than it has ever been” as conflict widened from Europe to the Middle East.

Speaking in the House chamber at the U.S. Capitol during a four-day state visit with Queen Camilla, Charles tied his remarks to the 250th anniversary year of the Declaration of Independence and to a wider argument about Western resolve. He said the modern relationship between Britain and the United States stretched back more than four centuries, then warned against becoming “ever more inward-looking” as global instability deepened.

The King’s intervention was unusually direct for a monarch, and that was the point. In a city consumed by partisan division and anxious about wars abroad, he framed the alliance as something more than ceremony: a public reaffirmation that Washington and London intend to stand together in what he described as a more volatile and dangerous era. His speech also nodded to the 25th anniversary of the September 11 attacks, which he and Queen Camilla planned to mark later in the trip in New York City.

Charles also used the address to condemn political violence after the recent shooting at the White House Correspondents’ Association dinner, saying such acts “will never succeed.” He backed continued support for Ukraine and described AUKUS as “the most ambitious submarine program in history,” folding defense cooperation, transatlantic security and climate and nature protection into a single message about shared interests.

Lawmakers from both parties responded warmly, with repeated applause and at least one standing ovation. Sen. Lindsey Graham called the speech a “terrific combo of wit, humor, history and appreciation,” while former Vice President Mike Pence said it was an affirmation of shared values. Chuck Schumer said it was a reminder that allies matter.

The moment carried added historical weight. Charles became only the second British monarch ever to address a joint meeting of Congress, following Queen Elizabeth II, whose May 16, 1991 speech drew a standing ovation from roughly 800 people. More than three decades later, the setting was different, but the message was similar: in times of great uncertainty, the U.S. and Britain are still being asked to present a united front.