The 77-year-old royal, accompanied by Queen Camilla, arrived in Washington, D.C. on Monday (27 April) for a four-day state visit. The trip includes meetings with Donald Trump and Melania Trump, and coincides with celebrations marking America’s 250th anniversary. It is also intended as a symbolic reaffirmation of the long-standing relationship between the UK and the US.

Their packed schedule has included afternoon tea at the British Embassy, a high-profile garden party, and a formal state banquet. Still, the King’s speech to Congress stood out as the most significant moment of the visit.

Subtle and Direct Messages in the Speech

According to Sky News’ US correspondent, the address contained both “subtle and not-so-subtle messaging.”

One key moment came when Charles reminded the US that NATO invoked Article 5—the principle that an attack on one member is an attack on all—only once, following the September 11 attacks.

This reference carries weight given Trump’s previous criticism of NATO, including questioning its value and suggesting a reassessment of America’s involvement.