President Donald Trump said Tuesday that he's “not happy” with his Russian counterpart, Vladimir Putin, saying that Moscow's ongoing war in Ukraine is “killing a lot of people” on both sides. The president also acknowledged that his previous suggestions that he might be able to cajole Russia's president into bringing the fighting to a close and quickly ending the war in Ukraine has “turned out to be tougher.

Russian President Vladimir Putin’s forces launched a massive aerial assault on Ukraine early Thursday for the second time in two days.

U.S. President Donald Trump has voiced frustration with Russian President Vladimir Putin over the intensification of attacks.