Cedomir Nestorovic, professor of geopolitics at ESSEC Business School, discusses Ukraine-Russia peace negotiations.

Vladimir Putin is open to discussing a Ukraine ceasefire deal with Donald Trump but rules out making any major territorial ...

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

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

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

Former U.S. Ambassador to Ukraine William Taylor joined CBS News to discuss Ukraine's use of American missiles in strikes on ...

By The President Vladimir Putin on Tuesday signed a revised nuclear doctrine declaring that a conventional attack on Russia ...

Analyst on Putin signing new Russian nuclear doctrine after Biden’s arms decision for Ukraine Share There is fear, but life ...

LONDON -- Ukraine is expected to soon begin using American-made ATACMS missiles to hit military targets in Russia's western ...

Russian President Vladimir Putin on Tuesday lowered the threshold for nuclear weapons use, just two days after the U.S.

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