Former Russian president Dmitry Medvedev has become embroiled in a tense back-and-forth on social media that prompted U.S.

The Kremlin has tried to calm tensions in a feud between Trump and Medvedev that spiraled into nuclear threats.

Rolf Mützenich, former leader of the SPD parliamentary group in Germany's Bundestag, has criticised a "nuclear exchange" ...

Trump also rebuked Medvedev in July, accusing him of throwing around the "N (nuclear) word" after the Russian official ...

Did former Russian President Dmitry Medvedev warn President Donald Trump that he should not think that "the Mossad alone has ...

President Donald Trump has ordered the repositioning of two U.S. nuclear submarines. Friday's decision comes after what he ...

Dmitry Medvedev referenced a rumored Soviet-era nuclear weapon system during an online disagreement with President Trump.

COMMENT: Steve Witkoff - the president’s international diplomatic Mr Fixit - has failed to bring peace to the Middle East or ...

As Trump's frustration grows over Russia's strikes on Ukraine, White House envoy Steve Witkoff met with Russian President ...

As Trump has said, “Words have meaning”—and threatening to deploy nuclear submarines off the coast of Russia in response to ...