• President Trump said North Korea would be “met with fire and fury like the world has never seen” if it continued to threaten the U.S. with the development of more sophisticated nuclear and ballistic weapons.

In response, Pyongyang warned it was considering a military strike that would create “an enveloping fire” around the island of Guam, a U.S. territory in the West Pacific.

The North’s increasing defiance drew not only Mr. Trump’s extraordinary threat – made at a golf club in New Jersey - but also the prospect of a regional arms race. Politicians in Japan and South Korea are warming to more powerful weapons.