US intelligence agencies believe China is developing a “new generation” of nuclear weapons — with Beijing having reportedly conducted at least one undisclosed explosive test already. China’s plan to radically advance its nuclear capabilities — beyond its 600 operational warheads — could mean a severe shift in its overall nuclear strategy,

Israel and the United States are testing new or little-known weapons in the Middle East war, including an Israeli "Sparrow" missile and an Iranian-inspired drone made in America then fired back at Iran.

The US military needs to improve its weapons testing processes, according to a new watchdog report. Needed improvements include involving testers early, iterative testing, digital twinning, and user feedback. The Pentagon is prioritizing the rapid ...

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 completely transform its nuclear arsenal into the world’s most technologically advanced,

Late last week, the U.S. leveled an explosive claim: China is planning secret nuclear weapons tests and has already conducted at least one. The undersecretary of state for arms control and international security, Thomas DiNanno, disclosed the major U.S ...

A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago.

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.

Nuclear weapons tests were once a regular occurrence, but most countries haven’t tested in decades, following the adoption of the Comprehensive Nuclear-Test-Ban Treaty in 1996. Now, that moratorium might be nearing an end. Politicians, including U.S ...

A nonpartisan government watchdog is calling on the Department of Defense to update its testing policies so U.S. troops can acquire weapons at a quicker scale. The Government Accountability Office (GAO), an independent government agency, published a new ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one. “As of today, the world has gone eight years, four months, and 11 days ...

President Trump's Truth Social announcement that the US will pursue new nuclear weapons testing raises more questions than it answers.