Russian President Vladimir Putin has revised his country's nuclear doctrine days after President Joe Biden's latest actions.

British Prime Minister Keir Starmer on Tuesday criticised "irresponsible rhetoric coming from Russia" after US President Joe Biden gave Ukraine permission to use Western-supplied long-range missiles ...

There is confirmation that Joe Biden has permitted Ukraine to use long-range American weapons to target locations deep within ...

The new doctrine allows for a potential nuclear response by Moscow even to a conventional attack on Russia by any nation that ...

Ukraine fired six U.S.-supplied ATACMS into Russia on Tuesday after Biden authorized Ukraine to fire long-range missiles into ...

Markets experienced volatility Tuesday as investors weigh mounting tensions between Russia and the United States.

Kremlin spokesperson Dmitry Peskov said Tuesday that Russia's new nuclear weapons doctrine means Ukraine's use of Western ...

The Biden administration has allowed Ukraine to use Army Tactical Missiles Systems, a long-range missile system that often ...

President Vladimir Putin on Tuesday formally lowered the threshold for Russia’s use of its nuclear weapons, a move that ...

Ukraine has fired US-made ATACMS missiles into Russia’s Bryansk region, Russia’s Defense Ministry said, in a major escalation ...

Russia said Ukraine has fired U.S.-made longer-range weapons inside its territory days after the U.S. said it would allow ...