US President Donald Trump will travel to the UK for a two-day visit ahead of the general election next month, the White House has said.
Mr Trump will visit from Monday December 2 to Wednesday December 4 for a NATO meeting.
The President is currently undergoing an impeachment inquiry in the US.
Mr Trump intends to discuss defence spending and addressing threats "emanating from cyberspace, those affecting our critical infrastructure and telecommunications networks, and those posed by terrorism" according to the statement.
NATO - the North Atlantic Treaty Organisation - will meet at the Grove Hotel, near Watford, on December 4.
There is also an opening event at Buckingham Palace on the evening of December 3.
Mr Trump has faced large-scale demonstrations on his two previous visits to London as US president.
He last came to the UK in June of this year when he received a state visit.
A statement released by the White House today said: "President Donald J Trump and First Lady Melania Trump will travel to the United Kingdom from December 2 to 4, 2019, to attend the North Atlantic Treaty Organisation (NATO) Leaders Meeting and a reception hosted by Her Majesty Queen Elizabeth II at Buckingham Palace.
"Seventy years after its founding, NATO remains the most successful Alliance in history, guaranteeing the security, prosperity, and freedom of its members.
"President Trump looks forward to meeting with the other NATO Heads of State and government to review the Alliance’s unprecedented progress on burden-sharing, including adding more than $100 billion in new defence spending since 2016.
"The President will also emphasise the need for the NATO Alliance to ensure its readiness for the threats of tomorrow, including those emanating from cyberspace, those affecting our critical infrastructure and telecommunications networks, and those posed by terrorism."
