The United States is aware that China has conducted secret nuclear explosive tests, in violation of global commitments against testing, Washington’s top arms control official said on Friday. Beijing ...

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 ...

Nov. 6 (UPI) --President Donald Trump's calls to ramp up nuclear weapons testing last week have put nuclear watchdogs and world leaders on alert while experts say the United States has little to gain.

(CNN) — 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 ...

WASHINGTON, March 24 (Reuters) - A senior State Department official on Tuesday said the U.S. still is assessing how to implement President Donald Trump's order to ‌resume U.S. nuclear weapons tests, ...

Erin D. Dumbacher is Stanton nuclear security senior fellow at the Council on Foreign Relations. President Donald Trump this week posted on social media that he had ordered the immediate resumption of ...

U.S. Senator Edward Markey (D-MA) alongside Senate Democrats speaks during a press conference addressing a new policy that demands recipients of foreign military aid to follow international ...