The developments marked a worrying new escalation in the conflict that has repeatedly ratcheted up international tensions.

The approval of the document demonstrates Putin’s readiness to tap his nuclear arsenal to force the West to back down.

The Russian Defence Ministry says that Ukraine launched ATACMS missiles at Russia's Bryansk region shortly after Joe Biden ...

Ukraine’s use of long-range missiles to attack Russia comes as both sides are positioning for peace talks once Donald Trump ...

Putin’s forces hit with first ATACMS long-range missiles after US decision - Russian president Vladimir Putin has lowered the ...

Vladimir Putin has signed an update to Russia's nuclear doctrine, coinciding with the 1,000th day of the war in Ukraine.

Russia said Ukraine has fired U.S.-made longer-range weapons inside its territory, days after the U.S. said it would allow Kyiv to use those systems to conduct deeper strikes, a l ...

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

Earlier, the Russian Defense Ministry said that on Monday night into Tuesday, Ukraine attacked Russia’s borderline Bryansk Region with six ATACMS missiles ...

Russia's defense ministry says Ukraine launched its first attack using U.S.-made ATACMS missiles days after Biden gave Kyiv ...