GENEVA (AP) — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a ...

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing are unraveling.

President Trump is pressuring Iran to either curtail its nuclear program or face military strikes, after Iran amassed a large ...

CHINA has been accused of a massive nuclear expansion as well as carrying out secret tests, as the United States bids to ...

Tehran has denied it seeks nuclear weapons and said it was willing to accept some curbs in exchange for sanctions relief.

A Trump administration official said that a remote seismic station in Kazakhstan measured an “explosion” in western China on ...

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 ...

US claims China carried out a 2020 underground nuclear test at Lop Nur, urging Beijing and Moscow to engage in disarmament after New START expired.

Iran may be a week away from weapons-usable nuclear material as enrichment nears critical levels, US pressures Tehran with military deployments and diplomacy, but Tehran refuses to capitulate under pr ...

Special Envoy Steve Witkoff says Iran is a “week away” from developing nuclear bomb-making material through uranium enrichment. Witkoff said Iran’s enrichment level has reached “60 percent.” “They’re ...

Turkish FM Hakan Fidan also said that the idea that US or Israeli airstrikes on Iran could lead to regime change was "a pipe ...

The Europeans, however, aren’t as confident now about the U.S. nuclear umbrella. President Donald Trump’s administration has ...