Dressed in full white tie, President Trump spoke glowingly of the friendship between the US and the UK and described the 93-year-old monarch as a 'great, great woman'.
He was joined at the dinner by First Lady Melania, who dazzle din a custom Dior Couture gown with matching white gloves, and his four adult children; Ivanka, Donald Jr, Eric and Tiffany.
'We thank God for the brave sons of the United Kingdom and the United States who defeated the Nazis.
'As we honor our shared victory and heritage, we affirm the common values that will unite us long into the future; freedom, sovereignty, self-determination, the rule of law and reference to the rights given to us by almighty God.
'On behalf of all Americans I offer a toast to the eternal friendship of our people, the vitality of our nations and truly remarkable reign of Her Majesty the Queen,' Trump said in part.
In a string of tweets before the event, the president said: 'London part of trip is going really well. The Queen and the entire Royal family have been fantastic. The relationship with the United Kingdom is very strong.
As he made his way into the Music Room with the Queen, the president's children hung back, gawping at their surroundings.