President Donald Trump is set to hold talks on Tuesday with Russian President Vladimir Putin as he looks to get buy-in on a U.S. ceasefire proposal that he hopes can create a pathway to ending Russia’s devastating war on Ukraine.

The engagement is just the latest turn in dramatically shifting US-Russia relations as Trump has made quickly ending the conflict a top priority, even at the expense of straining ties with longtime American allies who want Putin to pay a price for the invasion.

President Trump says the US will speak to the Russian leader about “power plants” and “dividing up certain assets” in Ukraine talks.