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 ...

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

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

Russia is supposed to be allowing regular inspections of its nuclear arsenal. But worsening relations with the U.S. over the ...

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

Russia wants to sit down with Pentagon officials for “open and specific” talks on alleged violations of the Intermediate-Range Nuclear Forces treaty, the Russian Defense Ministry said Saturday.

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

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.

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.

The U.S. General said Russia will likely launch nuclear warheads if Ukraine threatens to retake Crimea Brig. Gen. Ryan said a Russian nuclear strike would cause tens of thousands of deaths Russia ...

the Russian Foreign Ministry statement on Monday said that the talks between the foreign ministers of Russia and Iran were postponed after both diplomats agreed. According to the Russian news agency, ...