Putin said the small-scale nuclear technologies used in both the Burevestnik and the Poseidon were particularly useful for ...

Experts say there are roughly 12,241 nuclear weapons across the world, with just over 9,600 thought to be operational.

The announcement via social media post came after Russia recently said it conducted multiple nuclear weapons tests.

President Donald Trump said the US would match its rivals in testing nuclear weapons after Russia in recent days announced ...

Russia said it tested a nuclear-powered cruise missile and torpedo, two of its experimental weapons, in recent days.

President Donald Trump on Thursday threatened to begin testing US nuclear weapons in response to actions by rival countries, ...

"His use of the phrase ‘nuclear tests’ suggests actual nuclear detonations, whereas the call for tests ‘on an equal basis’ to ...

President Donald Trump's call for the U.S. to resume nuclear testing after a more than 30-year pause has caught Russia's ...

Russia announced "next-generation" weapons in 2018, including the Poseidon torpedo, which can be fired by the new "Khabarovsk ...

Russia is still awaiting U.S. clarification of President Donald Trump's remarks on resuming nuclear testing, TASS state news agency cited Kremlin spokesman Dmitry Peskov as saying late on Tuesday.

The Kremlin is fuming after Donald Trump introduced new sanctions on its two biggest oil companies and ordered the resumption ...