China is engaged in a huge nuclear weapons expansion, growing the size and capabilities of its arsenal. At a time when the ...

For the first time in more than half a century, there are no binding restraints on the buildup of the largest nuclear forces on Earth. The New START treaty expired on Feb. 5, 2026, ending the last ...

Iran's closest allies, Russia and China, have not offered material support to it, exposing the hard limits of its "strategic" partnerships.

Vladimir Putin’s most dangerous new capability is not a single missile or drone, but a fast-maturing strike complex that blends hypersonic weapons, precision electronics and directed-energy systems.

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

The expiration this week of a core U.S.-Russia arms control treaty could touch off a global nuclear weapons race for the first time since the Cold War. Russia made initial overtures about a renewed ...

Reuters, citing a senior US State Department official, has reported that the US delegation has already held talks with ...

Israeli experts have suggested that external assistance may have played a role, raising speculation about possible transfers ...

Add Yahoo as a preferred source to see more of our stories on Google. The New Start treaty caps the number of deployed strategic nuclear warheads for the US and Russia to 1,550 each [AFP via Getty ...

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

The United States and Russia are entering a new phase of nuclear relations with no treaty limiting their arsenals, as President Donald Trump calls for a sweeping new arms control agreement and Russian ...

The world's two largest nuclear powers, Russia and the United States, no longer have any limits on their arsenals. At midnight on Thursday, a 15-year-old treaty called New START expired, and with it, ...