King Charles has stressed the value and importance of the "indispensable" UK and US partnership in an historic address to Congress in Washington DC.
In the historic setting of the Capitol building, the King warned that the two nations had to stand together in this "more volatile, more dangerous" era.
"We meet in times of great uncertainty, in times of conflict from Europe to the Middle East which pose immense challenges," he told the chamber, filled with US lawmakers.
It was the biggest diplomatic moment of his reign amid a backdrop of deepening political tensions between the US and the UK - and in the end, he got a standing ovation before he'd even spoken.
There were about 12 standing ovations in total, as the audience repeatedly interrupted the King's address with loud applause.
