The Arc de Triomphe in Paris, which the president vows to top in Washington, offers a lesson in the complicated history of monuments.

Not since his mother, Queen Elizabeth II, traveled to Washington after the Suez Crisis has a visit by the British monarch come at such a fraught point in Anglo-American relations.

The British royals are set to arrive on Monday for a visit hosted by President Trump, with a garden party, an address to Congress and a banquet on the schedule.

Drug gangs have turned the South American country into one of the most dangerous in the region and the world’s leading exporter of cocaine.