US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Speaker 1: From the opinion pages of the Wall Street Journal, this is Potomac ...

President Donald Trump has called for the United States to test its nuclear weapons for the first time in three decades. But Trump’s statements about testing — in particular, whether other nations are ...

Add Yahoo as a preferred source to see more of our stories on Google. The U.S. military will launch an unarmed nuclear missile across the Pacific Ocean overnight Nov. 4, in a pre-planned firing that ...

MAJURO, MARSHALL ISLANDS — Lemeyo Abon learned about snow from the movies played on projectors by visiting American sailors. But living on Rongelap — a remote tropical atoll in the central Pacific ...

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the ...

Coming soon: Defense Secretary Pete Hegseth’s acquisition reform. Three days before his scheduled address to defense CEOs and acquisition officials, Valerie Insinna of Breaking Defense obtained what ...

"We've halted many years ago, but with others doing testing I think it's appropriate to do so," the president told reporters aboard Air Force One. Experts say that the resumption of testing would be a ...