Several European countries said on Tuesday they were willing to buy U.S. arms for Ukraine under a scheme announced by U.S. President Donald Trump, although arrangements still needed to be worked out.

After European leaders stepped up military spending, President Trump aligned himself more closely with them on the war. But his tariffs threats have left bruises.

Trump’s U-Turn seems partly the result of European leaders, Rutte especially, who worked hard to develop common ground with the U.S. President. It also seems to be the result of growing irritation with Putin. Trump said Monday that Putin talks “so beautifully” when it comes to a ceasefire but “then he’ll bomb people at night. We don’t like that.”