By making harsh, uncompromising demands in peace talks with Ukraine while continuing to pummel it with waves of missiles and drones, Russian President Vladimir Putin is sending a clear message: He will only accept a settlement on his terms and will keep fighting until they’re met.

Moscow’s dual campaign of intensified frontline attacks and bombardment of Ukrainian cities has further reduced the prospects for an end to the fighting.

Russia said it’s sending a delegation to Istanbul on Monday for a second round of talks with Ukraine amid wrangling over Kyiv’s insistence that Moscow outline its peace proposals before any meeting.