A surge of satellite activity at China’s remote Lop Nur nuclear site has sent shockwaves through Washington, triggering ...

President Trump has an ad-hoc approach to foreign policy. How well is it working?Guest host Sacha Pfeiffer speaks with ...

The quiet expansion of Beijing’s remote nuclear weapons complex, Lop Nur, points to years of preparation for a potential ...

President Donald Trump reiterated his call for the U.S. to resume nuclear testing in a video he posted on his social media ...

Russia on Sunday reaffirmed that President Vladimir Putin has not ordered any nuclear tests and that Moscow remains committed ...

President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first time in three decades, ...

The head of the Comprehensive Nuclear-Test-Ban Treaty Organization, or CTBTO, said on Thursday that any explosive nuclear weapon test would be harmful for global non-proliferation efforts and peace ...

Trump's comments last month sparked fears of a new nuclear arms race and concerns major powers would restart full testing.

The Comprehensive Nuclear Test Ban Treaty (CTBT) 1996, which prohibited “any nuclear weapon test explosion or any other ...

Russian President Vladimir Putin says the country will explore the possibility of carrying out fresh nuclear tests after US ...