read the article what he said

"We saw this in World War II when Denmark fell to Germany after just six hours of fighting and was totally unable to defend either itself or Greenland," Trump said.

"So the United States was then compelled to send our own forces to hold the Greenland territory, and hold it," Trump said. "We did at great cost and expense... we literally set up bases on Greenland for Denmark. We fought for Denmark. We weren't fighting for anyone else. We were fighting to save it for Denmark."

He said the U.S. should not have returned Greenland after the war and accused Denmark of failing to invest in defenses.

"After the war, which we won, we won it big," he said. "After the war, we gave Greenland back to Denmark. How stupid were we to do that, but we did it. But we gave it back. But how ungrateful are they now?"