The number of Chinese operational nuclear warheads has increased by more than 100 to over 600, the Pentagon reported.

Images from space reveal an enormous X-shaped building rising up from rocky terrain in southwestern China. This is a huge nuclear fusion research facility, analysts say, and it could be a sign ...

Creating an Iron Dome for America would not just be a poor decision — it would be a monumental failure in defense policy.

China is building a large-scale laser-ignited nuclear fusion research facility in Mianyang to enhance both nuclear weapons design and clean energy production. The facility's design mirrors the ...

US President Donald trump expressed his desire to engage in talks with Russia and China about reducing nuclear weapons ...

Amid growing tensions, Russia, China and the U.S. are all upgrading their nuclear test sites. Amid these growing tensions, the U.S. National Nuclear Security Administration, the civilian agency that ...

The Kremlin immediately confirmed its interest in launching talks "as soon as possible", saying last week that French and ...

estimating that China's nuclear stockpile is expected to increase to about 1,500 warheads by 2035. On Monday, Trump signed an executive order to start planning for an "Iron Dome" air defence ...

Amid growing tensions, Russia, China and the U.S. are all upgrading ... the civilian agency that maintains America's nuclear stockpile, allowed a small group of journalists to tour a secretive ...