That’s why NATO might have to get involved ... we really need Greenland for national security. It’s very important,' Trump said in front of NATO Secretary-General Mark Rutte.

Donald Trump has said he hopes to buy Greenland for ‘national security’ purposes, baffling experts and politicians alike. In late January, he reinforced his desire to purchase the world’s largest island. ‘I think Greenland will be worked out with us. I think we’re going to have it,’ he said.

The Norse explorer Erik the Red arrives in Greenland with a fleet of Viking ships, according to the medieval Icelandic sagas. The Norsemen established two settlements that had a peak population of 2,500-5,000 but disappeared around 1450 for unknown reasons.