MOSCOW, Feb 13 (Reuters) - Senior Russian officials have challenged the viability of U.S. proposals to build a nuclear power ...

Moscow reiterates willingness to adhere to expired nuclear weapons treaty, "as long as the United States does not exceed the ...

U.S. lawmakers have expressed concern that the end of New START could lead to “a dangerous and costly arms race” between the ...

The risk of a small Russian nuclear strike in Europe is rising as the US military deterrent wanes, a British think-tank has warned.

If it expires, it expires,’ Trump shrugged off as experts have warned about the dangers to the world. Maira Butt reports ...

For more than five decades, the United States and Russia (and before it, the ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE PHOTO: US President George Bush and Soviet President Mikhail Gorbachev exchange pens after signing the START treaty. July 31, ...

On Wednesday, Vladimir Putin confirmed a successful test of the Poseidon days after a trial of the new Burevestnik cruise missile, which was followed by nuclear launch drills. Donald Trump, who has ...

Turkey just took another very large, very deliberate step deeper into Russia’s energy orbit — and this time it comes with a $9 billion price tag. Ankara says that Russia has provided $9 billion in new ...

Military capability of Western alliance remains ‘formidable’ even without US commitment, as Putin warns Russia is ‘ready’ to ...