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

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 ...

Strange earthquakes have been recorded near one of the US’s most secretive nuclear weapon testing facilities, and scientists ...

The United States is “immediately” restarting nuclear weapons testing, President Donald Trump has said. “Because of other countries’ testing programs, I have instructed the Department of War to start ...

President Donald Trump’s call for the United States to resume testing of nuclear weapons last week has experts scratching their heads. What did he really mean – exploding a warhead or testing delivery ...

President Donald Trump wrote on Truth Social, his social media site, that he had instructed the Department of War (formerly the Defense Department) to return to “nuclear testing” — although it’s ...