And German Chancellor Angela Merkel called Tuesday for the future development of a European Union military.

Chancellor Angela Merkel: “We have made a lot of progress in the area of structural military cooperation. That’s good and is mostly supported here. But we should—and I’m saying this also because of developments in recent years—we should work on a vision of one day establishing a real European army.”

Her statements echoed a vision recently expressed by French President Emmanuel Macron. President Trump attacked Macron during a tweetstorm Tuesday following his tense visit to Paris for Armistice commemoration events over the weekend. Trump wrote, “Emmanuel Macron suggests building its own army to protect Europe against the U.S., China and Russia. But it was Germany in World Wars One & Two–How did that work out for France? They were starting to learn German in Paris before the U.S. came along. Pay for NATO or not!”