The White House says President Donald Trump and Russian President Vladimir Putin have agreed on an immediate ceasefire for energy and infrastructure targets in the Russia-Ukraine war. The White House described the move Tuesday as the first step in a “movement to peace” that it hopes will eventually include a maritime ceasefire in the Black Sea and a full and lasting end to the fighting. Ukraine hasn't responded yet. Associated Press reporter Zeke Miller says Trump and Putin held a call for more than an hour on Tuesday, working out a three step plan. “The real test is going to be does this sort of agreement in principle actually materialize? Do both sides cease attacks on energy and infrastructure sites in their respective countries? That will be the first trust building exercise, so to speak. Of this can they actually get what is an agreement in principle into something that takes effect on the ground,” Miller said. The engagement is just the latest turn in dramatically shifting U.S.-Russia relations as Trump 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.