Add Yahoo as a preferred source to see more of our stories on Google. China has rejected US calls for it to enter negotiations on a new three-way treaty to limit nuclear arsenals (Pedro Pardo) (Pedro ...

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 ...

GENEVA (AP) — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago and urged countries to ...

The announcement was a significant step in forging a European deterrent as Russia grows more aggressive and the U.S. steps back.