New Delhi, April 29 -- King Charles III stole the show at a White House state dinner. He did it with a single joke that left the entire room in splits. And, the target was sitting right across from him: US President Donald Trump.

During a lighthearted toast at the white-tie dinner, the King turned to President Trump. He referenced Trump's recent claim at the World Economic Forum.

Trump said European countries would be speaking German without American intervention in World War II. Charles waited for his moment. Then, he delivered.

"Dare I say that, if it wasn't for us, you'd be speaking French," he said. The East Room erupted in laughter.

The joke was historically sharp. Before American independence in the late 1700s, Britain controlle...