Mr. Trump focused on Ms. Frederiksen’s comment that selling Greenland was an “absurd discussion,” as she put it. “It was nasty,” Mr. Trump told reporters as he left the White House for a trip to Kentucky. “I thought it was an inappropriate statement. All she had to do is say, ‘No, we wouldn’t be interested.’”
To Mr. Trump, it was not just an insult to him but to the nation as a whole. “She’s not talking to me. She’s talking to the United States of America,” he said. “You don’t talk to the United States that way, at least under me.”
That was not enough, however. He then took to Twitter to further assail Denmark, saying that as a NATO member it did not contribute enough to military spending. And then for good measure, he went after NATO as a whole for not spending enough on their militaries.
“We protect Europe and yet, only 8 of the 28 NATO countries are at the 2% mark,” he wrote, referring to the goal set by the alliance for members to spend 2 percent of their gross domestic product on defense.
The dust-up could have wider ramifications, analysts said. “The president’s anger and his menacing tweet about Danish defense spending reignites Europeans’ worst fears about the U.S. commitment to NATO,” said Constanze Stelzenmüller, a German scholar at the Brookings Institution. “Presumably, the administration isn’t considering foreclosure. But is selling our territory now a proof of fealty for President Trump?”
Ms. Frederiksen opted not to fire back. “I’m not going to enter a war of words with anybody, nor with the American president,” she said on Danish television. She added that she found the Danish response to Mr. Trump’s planned visit and its cancellation “good and wise.”
It fell to Secretary of State Mike Pompeo to do damage control, calling his Danish counterpart, Jeppe Kofod, to express “appreciation for Denmark’s cooperation as one of the United States’ allies,” according to Ms. Ortagus.