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

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

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.

China firmly supports the purpose and objectives of the Comprehensive Nuclear-Test-Ban Treaty, and the US accusations that ...

Today, certain forces in Washington are adding a new, dangerous layer of absurdity to this tale, casting the US as a modern-day Don Quixote - or as we might call it, "Don Qui-nuke." Following the ...

China rejected allegations from the US that it is conducting nuclear explosive tests and has undertaken an "unprecedented" ...

The US has for long maintained extended deterrence and "nuclear umbrella" commitments with its allies in Europe and Asia.

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. Also Monday, the assistant secretary of state ...

Speaking before the Conference on Disarmament in Geneva, Russian ambassador Gennady Gatilov decried US President Donald Trump's announcement last year that his country was prepared to stage its first ...

Clashing accusations between Washington, Moscow, and Beijing threaten to unravel decades of restraint on nuclear explosions and put the global test-ban effort at risk.