Russian President Vladimir Putin has approved changes formally lowering the threshold at which his country can consider a ...

On Tuesday, Ukraine for the first time fired U.S. ballistic missiles into Russia, striking a munitions depot supporting the ...

The U.S. Embassy in Kyiv said it would stay closed Wednesday after receiving a warning of a potentially significant Russian ...

For the first time, Ukraine has fired U.S. ballistic missiles into Russia as part of heavy ongoing fighting. Russia is expressing strong opposition and says this marks an escalation in the war.

World leaders and analysts expressed doubts Wednesday that the change to Russia's nuclear doctrine amounted to much more than ...

“Putin has not made any final decision” on his approach to peace talks, said Sergei Markov, a former Kremlin adviser. “He ...

The warning arrived amid fears that the war could escalate, a day after Ukraine's military first launched U.S.-made ...

November, as Kyiv's forces began to engage military targets inside Russian territory using long-range weapons donated by the ...

Long-range British Storm Shadow missiles have reportedly been fired into Russia by Ukraine for the first time. The weapons ...