ReutersPresident Trump was greeted by the King and Queen as well as other senior royals at Windsor Castle.
It is his second state visit to the UK and is accompanied by the usual pomp and pageantry.
Ian Vogler/Daily Mirror/PA WireFor the second time, Donald Trump is greeted by a British monarch on a state visit
Ian Vogler/Daily Mirror/PA WirePresident Trump shook hands with King Charles and the two were in deep conversation outside Windsor Castle
Aaron Chown/PA WireThe First Lady, Queen and Princess of Wales chatted in a separate group nearby.
Chris Jackson/Getty Images The Trumps, the King, Queen and Prince and Princess of Wales then stepped into the royal carriages
Samir Hussein/WireImageKing Charles and President Trump, were first in the procession, travelling in the Irish State Coach
Aaron Chown/WPA Pool/Getty ImagesDonald Trump earlier disembarked from his helicopter, Marine One, alongside First Lady Melania Trump
AARON CHOWN/POOL/AFPThe pair were greeted at Windsor Castle by the Prince and Princess of Wales
Isabel Infantes/REUTERS Marine One could be seen as it headed to Windsor
Chris Jackson/Getty Images Earlier bands played during the final preparations for the ceremonial greeting and troop inspection by the King and President Trump
Reuters
Ian Vogler/Daily Mirror/PA Wire
Ian Vogler/Daily Mirror/PA Wire
Aaron Chown/PA Wire
Chris Jackson/Getty Images
Samir Hussein/WireImage
Aaron Chown/WPA Pool/Getty Images
AARON CHOWN/POOL/AFP
Isabel Infantes/REUTERS
Chris Jackson/Getty Images