The British police said the attack on Wednesday was being treated as terrorism, and they warned of rising antisemitic hate crimes.

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.

Prime Minister Keir Starmer’s government blocked the artist formerly known as Kanye West from entering Britain for the three-day Wireless Festival in July.

President Trump once called Prime Minister Keir Starmer a friend. But Britain’s decision not to join the attacks on Iran has led to merciless mocking by the president.

While some European countries said they were discussing ways to help reopen the Strait of Hormuz, several rejected President Trump’s calls to send warships.

This time, President Trump went to war without preparing the public, seeking U.N. approval or even consulting allies. But they will have to pick up the pieces.

To defend allies from Iran, the continent’s powers have mounted a rare show of force. But those efforts have diverted limited resources from other hot spots.

From London to Rome and beyond, leaders are facing diplomatic headwinds and criticism at home as they take part in a conflict they did not seek.

Higher energy prices, political instability and a potential new wave of refugees: The escalating regional conflict in the Middle East could have far-reaching effects.