But there’s a surprising case in which Europe is cautiously optimistic: Ukraine. Trump’s threat to Russian President Vladimir Putin on Wednesday to impose new tariffs and sanctions on Moscow if it didn’t reach a deal to stop the war sent a welcome message to European allies and other Ukraine supporters.

President Trump jabs at the Russian leader with threats; Vladimir Putin responds with flattery. But there are notable signals in their jousting, including a revived discussion about nuclear arms control.

President Donald Trump suggested in an interview that aired Thursday night that Ukraine should not have fought when Russia invaded it.