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's Deputy Foreign Minister Sergei Ryabkov sits in a car after talks with U.S. Under Secretary of State Victoria Nuland ...

Russia's deputy foreign minister said in an interview published on Monday that it was "quite possible" the New START nuclear ...

Russia said on Monday that no new date had been set for talks with the United States on the New START nuclear arms treaty, accusing the U.S. of ramping up tensions between the two sides. Talks between ...

Negotiations on creating a safety zone around Ukraine's Russia-controlled Zaporizhzhia nuclear plant are tough, and Kyiv ...

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 ...

Russia may be preparing targeted missile strikes with the aim of putting pressure on the Ukrainian population and exhausting ...

Russia is preventing dual-citizen migrant workers from leaving as it mulls another round of military call-ups, per UK ...

Gottemoeller had been involved in nuclear disarmament talks with Russia. She said that mutual predictability between the United States and China will be necessary. But she added that it is ...

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 ...

Risks to non-proliferation were dealt a blow as talks ... Nuclear Weapon-Free Zone. Meanwhile, Russia has backtracked somewhat from its nuclear threats, avoiding further escalation and affording ...