President Vladimir Putin has updated Russia’s nuclear doctrine, two days after his US counterpart Joe Biden granted Ukraine ...

A decree signed by the Russian leader, though long planned, came days after President Biden authorized the use of ...

Putin lowered the bar for a nuclear attack after the US lifted a ban on Ukraine using long-range missiles. Ukraine carried ...

Russia's nuclear doctrine now sees any aggression made with the help of a nuclear state as a joint attack.

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

Ukraine launched American-made ATACMS missiles at Russia shortly before President Vladimir Putin lowered his country’s ...

The political turbulence could pose a challenge for Russian president Vladimir Putin as the full-scale war he started against ...

Russian ruler Vladimir Putin issued a decree on 19 November approving Russia's updated nuclear doctrine shortly after the ...

Putin warned in September that Russia was changing its nuclear doctrine. Biden's authorization has renewed focus on what that ...

Russian president Vladimir Putin may be facing another uprising against Russian influence in Abkhazia, a breakaway region in ...

Russian President Vladimir Putin approved updated principles of Russia's nuclear deterrence policy, according to a ...

Fox News chief national security correspondent Jennifer Griffin reports on how new NATO countries are responding to Ukraine ...