King Charles the Third will tell a joint session of Congress that Britain and the United States have overcome past differences through 'reconciliation and renewal,' describing their partnership as one of the greatest alliances in human history. His address comes during his first visit to America as monarch and at a moment of political tension between President Donald Trump and Prime Minister Keir Starmer.

While Buckingham Palace has stressed that the king does not involve himself in day to day politics, officials hope his emphasis on shared democratic values and long standing cooperation will help ease strains between the two governments. He is expected to highlight collaboration in the Middle East and Ukraine, the North Atlantic Treaty Organization defense pact, and a submarine partnership with Australia and the United States, while also expressing pride in the Royal Navy.

The king and Queen Camilla began their visit in Washington with ceremonial events, including a welcome at Joint Base Andrews and a meeting with President Trump and the first lady at the White House. Their trip will continue with a state banquet, a visit to New York that includes a stop at the September Eleventh memorial, and events in Virginia, underscoring the historic ties between the two nations.