Russia’s refusal to allow the US to inspect its nuclear arsenal could reignite pressure for the US to develop new nuclear ...

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 ...

The United States said on Tuesday that Russia is not complying with its obligation under the New START nuclear arms treaty to allow inspection activities on its territory. In a statement, a State ...

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

The State Department has informed Congress that Russia is no longer meeting obligations set by the only nuclear arms control ...

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

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.

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 ...

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 ...

an effort to harness the power of nuclear fusion to unleash vast amounts of clean energy — continues to purr along with the participation of Russian scientists and Russian technology. Earlier this ...

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 ...

The Nuclear Non-Proliferation Treaty, which has served as the norm for promoting nuclear disarmament and preventing ... Only five countries--the United States, Russia, Britain, France and China ...