Special U.S. envoy Steve Witkoff says Russian leader Vladimir Putin agreed to allow the U.S. and Europe to offer Ukraine a security guarantee resembling NATO's collective defense mandate.

Russia said Wednesday attempts to resolve security issues relating to Ukraine without Moscow's participation were a "road to nowhere," and that much diplomatic work needs to be done before Vladimir Putin and Volodymyr Zelenskyy are ever in the same room.

Zelensky returns to the Oval Office for the first time since his blowup with Trump. This time he is bringing back up.

"This latest strike against our energy security is outrageous and unacceptable!" Hungarian Foreign Minister Péter Szijjártó posted to X on Monday morning.

Ukraine's air force said on Tuesday that Russia launched 270 drones and 10 missiles overnight in one of its largest attacks this month. The air force said it downed 230 drones and six missiles. It recorded strikes at 16 locations with four missiles and 40 drones.

Latest updates from the BBC's specialists in fact-checking, verifying video and tackling disinformation.

General Christopher Donahue, commander of U.S. Army Europe and Africa, said allies could seize Kaliningrad "in a timeframe that is unheard of."

Russia has continued to bomb Ukrainian civilians as peace talks to end the war are ongoing. NBC News’ Richard Engel details Ukrainian reaction to the meetings and what could happen to the people who may have to surrender to Russia.