President Trump has told NBC News that he won’t rule out using military force to take Greenland from Denmark. Trump’s comment came a day after Vice President JD Vance visited Greenland as part of his delegation with his wife Usha Vance, national security adviser Mike Waltz and Energy Secretary Chris Wright. On a scaled-back trip, they only visited a remote U.S. space base north of the Arctic Circle. The base is about 1,000 miles north of Greenland’s capital Nuuk. During a speech to U.S. troops, Vance repeatedly accused Denmark of neglecting Greenland.

Vice President JD Vance: “The president said we have to have Greenland, and I think that we do have to be more serious about the security of Greenland. We can’t just ignore this place. We can’t just ignore the president’s desires.”

One Danish TV channel reported U.S. officials went door to door in Greenland looking for locals who would be willing to meet with second lady Usha Vance, but the U.S. officials couldn’t find anyone interested. Usha Vance was originally scheduled to go to Greenland’s national dog sledding championship, but, under pressure, the U.S. dramatically scaled back the scope of the trip, which Greenland’s prime minister criticized as “highly aggressive.” In Nuuk, residents criticized the U.S. vice president for coming to Greenland.

Nuuk resident: “I don’t want the U.S. to invade us. They can do their own business, military business, in Thule, but they are not welcome here in Nuuk.”