Trump says Monday on Twitter that the U.S. pays billions "protecting other countries, and we get nothing but Trade Deficits and Losses." He adds: "It is time that these very rich countries either pay the United States for its great military protection, or protect themselves."

Trump returned late Sunday from ceremonies marking the 100th anniversary of the end of World War I. There French President Emmanuel Macron rebuked Trump's brand of politics, warning: "Patriotism is the exact opposite of nationalism: Nationalism is a betrayal of patriotism."