Russia has refused to reschedule a key meeting with U.S. nuclear negotiators that it canceled in November, a U.S. diplomat said on Tuesday, further delaying efforts to replace an expiring nuclear ...

Washington says Moscow is not complying with the pact as tensions soar over Russia's war in Ukraine. The treaty, which in its ...

It follows months of more hopeful US assessments that the two countries would be able to salvage cooperation on limiting strategic nuclear weapons despite high tensions over Russia's war on Ukraine.

Russia’s refusal to engage with the U.S. on resuming nuclear arms inspections has taken another worrying turn, with the State ...

“Russia’s refusal to facilitate inspection activities prevents the United States ... U.S.-Russian nuclear arms control,” the State Department said Tuesday. The administration also blamed Russia for ...

Stoltenberg said China is increasingly investing in nuclear weapons and long-range missiles without providing transparency or ...

The more important question for Washington is what Russia’s debacle in Ukraine may tell us about the future of nuclear deterrence. As the Congressional Research Service notes in a recent report ...

“Nuclear weapons make us vulnerable to dictators ... almost all of which are held by the U.S. or Russia. But, Fihn says, “the goalposts for disarmament just keep moving.” ...

Now there’s almost no chance Russia or China ... Kim has ignored US attempts to return to nuclear disarmament talks and brought along his daughter for her state media debut to attend the ...

A group of Russian hackers attempted to attack three US nuclear research laboratories in the summer of 2022, a Reuters investigation has revealed. As Putin threatened the use of nuclear weapons in ...

North Korea’s spike in missile testing and development of its nuclear program has prompted South Korea to re-evaluate its defense capabilities, including the potential development of a nuclear ...

WASHINGTON — A Russian hacking team known as Cold River targeted three nuclear research laboratories in the United States this past summer, according to internet records reviewed by Reuters and ...