Parkland high school student activists arrive for the TIME 100 Gala in Manhattan, New York, U.S., April 24, 2018.

Britain's Queen Elizabeth, Colonel-in-Chief of the Royal Tank Regiment, poses for a photograph after presenting the regiment with their new standard in St George's Hall at Windsor Castle in Windsor, Britain, April 25, 2018.

Central American migrants, moving in a caravan through Mexico and traveling to request asylum in the U.S., wait before getting on a bus to travel from Hermosillo to Tijuana, in Sonora state Mexico April 24, 2018. Picture taken April 24, 2018

Britain's Prince Harry and his fiancee Meghan Markle attend the Dawn Service at Wellington Arch to commemorate Anzac Day in London, Britain, April 25, 2018.

A view shows a classrom of Orlando Garcia state primary school in Socopo, Venezuela March 2, 2018. Picture taken March 2, 2018.

Damage caused by fire from a burning illegal oil well is seen in Ranto Peureulak, Aceh Province, Indonesia April 25, 2018 in this photo taken by Antara Foto.

French President Emmanuel Macron toasts U.S. President Donald Trump during a State Dinner at the White House in Washington, U.S. April 24, 2018. REUTERS/Carlos Barria

Mourners attend a candlelit vigil at the makeshift memorial a day after a van struck multiple people along a major intersection in north Toronto, Ontario, Canada, April 24, 2018.