Why Acquiring Greenland Would Be a Strategic Disaster

Greenland matters because the Arctic now matters. It sits on critical sea lanes, missile trajectories, and undersea infrastructure. The United States already has legal authority there under the 1951 U.S.–Denmark Defense of Greenland Agreement, which explicitly allows the U.S. to station forces and expand defense areas in Greenland as required under NATO defense plans, while fully respecting Danish sovereignty. If Arctic security is deteriorating—and it is—we already have the mechanism to respond. Picking a fight with Denmark, a NATO ally, is strategically irrational. NATO is the most successful military alliance of the last century, and undermining it directly benefits U.S. adversaries like Russia and China. This kind of coercion isolates the United States at exactly the wrong moment, and that damage may not be reversible. If the real issue is Greenland’s natural resources, that can only be pursued under Danish and Greenlandic law.
If anyone thinks buying Greenland is realistic, consider the numbers: U.S. debt is roughly 124 percent of GDP, total federal debt is about 38 trillion dollars, and interest payments alone are now running well over a trillion dollars annually. Acquiring Greenland at resource valuation would cost trillions more. How, exactly, would the United States pay for that?