King Charles has spoken candidly about the role of his Christian faith in his life and in how he views the world, in a historic address to the US Congress.

His speech on Tuesday marked the second time a British monarch has addressed a joint meeting of Congress, the first being the late Queen Elizabeth II in 1991.

On the second day of a four-day state visit to the US, Charles described his faith as a guiding force in both his life and leadership.

He said: “And, Mr Speaker, for many here and for myself, the Christian faith is a firm anchor and daily inspiration that guides us not only personally, but together as members of our community.

“Having devoted a large part of my life to interfaith relationships and greater understanding, it is that faith in the triumph of light over darkness which I have found confirmed countless times.

“Through it I am inspired by the profound respect that develops as people of different faiths grow in their understanding of each other.”

His comments were met with a large round of applause. Charles also spoke of the hope that God brings in difficult times as the world faces ongoing conflict.

“It is why it is my hope, my prayer, that in these turbulent times, working together and with our international partners, we can stem the beating of ploughshares into swords,” he said.

“I am mindful that we are still in the season of Easter, the season that most strengthens my hope.

“It is why I believe, with all my heart, that the essence of our two nations is a generosity of spirit and a duty to foster compassion, to promote peace, to deepen mutual understanding and to value all people, of all faiths, and of none.”

In a speech that Buckingham Palace had said beforehand would not be political, Charles also made references to President Donald Trump’s criticism of NATO, highlighted the importance of continued US support for Ukraine in its war with Russia, warned of the dangers of isolationism, and called for the safeguarding of nature.

The King’s state visit comes at a time when Trump has repeatedly criticised Prime Minister Sir Keir Starmer over what he sees as a lack of support regarding the Iran conflict.

Charles urged unity and the continuation of the “special relationship” between the UK and the US.

He concluded: “And so, to the United States of America, on your 250th birthday, let our two countries rededicate ourselves to each other in the selfless service of our peoples and of all the peoples of the world.

“God bless the United States and God bless the United Kingdom.”