Vance said, "I think Greenland understands that the United States should own it."
He added that if Denmark and the EU don't understand this need, "we have to explain it to them."
"We think this makes sense, and because we think the people of Greenland are rational and good, we think we're going to be able to cut a deal, Donald Trump-style, to ensure the security of this territory but also the United States of America," he said.