According to experts, Greenland is “ground zero for how the Arctic has become more geopolitically and strategically significant.”

U.S. President Donald Trump this week repeated his assertion that American control of Greenland is vital for “international security.” As Henry Ridgwell reports, Denmark, which owns the island, has admitted failing to invest in its security,

We need it for international security. And I’m sure that Denmark will come along — it’s costing them a lot of money to maintain it, to keep it,” says new U.S. president.