Greenland has been a national security concern of the United States since the 19th century. President Donald Trump is the most recent in a long line of American presidents expressing an interest in either acquiring Greenland or expanding the U.S. military footprint in Greenland in cooperation with Denmark.
Given Greenland’s strategic location, Trump’s interest is eminently rational—but the United States should address the valid security concerns raised by Trump without risking a breach with NATO.
American interest in Greenland goes back more than a century and a half. Secretary of State William Seward expressed interest in Greenland as early as the 1860s. American interest in purchasing territory from Denmark has a historical precedent, as the U.S. purchased the Virgin Islands from Denmark in 1917. The American military presence in Greenland dates to the 1940s, and President Harry S. Truman expressed an interest in purchasing Greenland from Denmark after World War II.
