"Rhetoric sometimes turns into action in unpredictable ways," a former senior U.S. arms control official told Newsweek.

New bilateral agreements on nuclear weapons between the U.S. and Russia in the immediate future are “highly unlikely” because ...

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

President Donald Trump could meet with Russian President Vladimir Putin as soon as next week to discuss the Russia-Ukraine ...

President Donald Trump’s trusted foreign envoy Steve Witkoff met with Russian President Vladimir Putin on Wednesday, after ...

Former President Dmitry Medvedev, who often issues threats on social media, told the world to "expect further steps" ...

Trump reveals nuclear submarine movements to counter Russian threats over Ukraine, marking a rare instance of a U.S. president openly discussing classified military positioning.

K-555 Knyaz Pozharsky is a Project 955A Borei–A–class vessel, a crucial component of the Kremlin's nuclear triad.

President Trump is rattling the U.S.’s formidable nuclear saber amid his growing frustration with Russian President Vladimir ...

Mr. Trump's special envoy, Steve Witkoff, is headed to Moscow this week ahead of a deadline on a Ukraine ceasefire.

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