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 ...

Russia is breaching the terms of the New START nuclear-arms reduction treaty by refusing to allow inspectors on its territory ...

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 ...

The United States said that Russia was not complying with New START, the last remaining arms control treaty between the world's two main nuclear powers ...

Russia's refusal to allow on-the-ground inspections to resume is endangering the New START nuclear treaty and U.S.-Russian ...

(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 ...

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.

By Michael Callahan, Jennifer Hansler, Haley Britzky and Kylie Atwood, CNN Russia is violating a key nuclear arms control agreement with the United States and continuing to refuse to allow inspections ...

“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.” ...

The US has previously warned Russia against using nuclear weapons in Ukraine, both through private direct communications, as well as public channels, including at last year’s UN General Assembly.

The White House/Handout via REUTERS Jan 20 (Reuters) - Russia said on Friday that relations with the United States ... U.S.-Russia talks on resuming inspections under the New START nuclear arms ...