An ally and former adviser to Russian President Vladimir Putin and former President Boris Yeltsin said the country could use ...

Former Putin adviser Sergey Karaganov warned that Russia would use nuclear weapons against Europe should it ever come close ...

Russia is still waiting for the United States to respond to President Vladimir Putin's proposal to informally extend for a ...

The death of the last treaty between Russia and the U.S. that limited the size of nuclear arsenals may spark a new arms race, ...

Russia attacked Ukraine overnight with 242 drones and 36 missiles, the Ukrainian Air Force said Friday morning.

The Kremlin said U.S. President Donald Trump has not yet responded to Russian President Vladimir Putin's offer to extend the ...

Sergey Karaganov, a former adviser to Putin, warned that Russia could deploy nuclear weapons if it came close to defeat.

Russia has said Donald Trump taking Greenland and positioning nuclear weapons on the island would bring about the 'end of the ...

Developing nuclear fusion and modernizing the US nuclear arsenal will require substantial collaboration with the private ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the ...

Sergey Karaganov told Tucker Carlson that Russia would use nuclear weapons against Europe if it faced defeat in Ukraine, ...

President Vladimir Putin is mediating in the Iran situation to try to quickly de-escalate tensions, the Kremlin said on ...