Russian President Vladimir Putin has ratcheted up tensions with Europe, warning that if the bloc starts a war with Russia, Moscow is ready.

Witkoff, the man whom Washington has sent to negotiate with Putin this week, is viewed with suspicion by Kyiv and its allies after a leaked phone call suggested he was advising Moscow on how to deal with Trump, according to a transcript published by Bloomberg News.

Five hours of talks between Russian President Vladimir Putin and top United States negotiators did not yield a breakthrough compromise on a possible Ukraine peace deal, a Kremlin aide said early Wednesday.

Russian President Vladimir Putin has claimed without evidence that Russian forces have taken control of Ukrainian cities Pokrovsk and Vovchansk.

Oil prices declined 1% on Tuesday as markets weighed faltering Russia-Ukraine peace hopes against fears of oversupply. Brent crude futures settled 72 cents lower, or 1.14%, at $62.45 a barrel, while U.

Russia launched its largest barrage of drones and missiles in a month across Ukraine, killing at least three people, Ukrainian President Volodymyr Zelensky said Saturday, as a Kyiv delegation heads to the United States for fresh peace talks.

Michael Froman, Council on Foreign Relations president, joins 'Squawk Box' to discuss the meeting between a U.S. delegation led by special envoy Steve Witkoff and Russian President Vladimir Putin, state of the Russia-Ukraine war,