The organizers are rallying against policies including the transgender military ban.
The goal is to raise awareness about the link between obesity and cancer.
Trump said the U.K.'s National Health Service was "going broke and not working" on Monday.
The procedure allows mothers to avoid passing serious genetic conditions to their children.
General Sir Nick Carter warned the British government about further cuts to its armed forces.
The smuggling of unvaccinated dogs as young as 4 weeks old has become a big business in Britain.
The president said his London trip was canceled because he didn't like the new diplomatic mission building.
The president is upset about a "bad deal" made in 2008.
Explosive Michael Wolff book says the former British leader sought to be a Middle East adviser to the president.
Of 80 graves excavated on site, this was the only one to contain artifacts of this kind.
The alliance is concerned about Moscow's presence near undersea communication lines.
British security services said Trump's policy on torture, if enacted, would "pose difficulties for the U.K.-U.S. intelligence relationship."
The foiled suicide plot comes after four attacks in the U.K. claimed by the Islamic State militant group (ISIS) this year.
Despite strong feelings against the president in Britain after a twitterstorm, plans for a visit to the U.K. remain unchanged.
Jayda Fransen had gained more than seven thousand followers in less than six hours.
"It's probably the single most important object that we found."
King Henry VIII, who beheaded two of his six wives, is buried in the chapel where Prince Harry and Meghan Markle will marry.