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 ...

Russia said on Wednesday it wanted to preserve its last remaining nuclear treaty with the United States despite what it ...

By Shaun Tandon The United States said Tuesday that Russia was not complying with New START, the last remaining arms ...

After decades of progress on limiting the buildup of nuclear weapons, Russia’s war on Ukraine has prompted renewed nuclear tensions between Russia and the U.S ...

This marks the first time that the U.S. has accused Russia of violating the treaty, which entered into force in 2011.

Russia's refusal to allow on-the-ground inspections to resume is endangering the New START nuclear treaty and U.S.-Russian arms control overall, the Biden administration charged on Tuesday.

(Photo by Galerie Bilderwelt via Getty Images) One of the more likely scenarios discussed is Russia firing a so-called tactical nuclear ... the United States committing unilaterally to disarmament ...

"Russia's refusal to facilitate inspection activities prevents the United States from exercising important rights under the ...

The treaty allows five of them—the United States, the United Kingdom, Russia, China, and France—to possess nuclear weapons. But it also requires those five to pursue full nuclear disarmament.

U.S. reliance on Russian nuclear fuel is substantial, but American companies have some options if Rosatom is hit with sanctions. How did the United States and Russia get entwined in the civilian ...

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.

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 ...