Inside the Danish Campaign to Keep Greenland, and Placate Trump

President Donald Trump has often joked that Denmark’s defense of Greenland is so paltry that it consists entirely of “two dog sleds.” As one of the few people to have manned those sleds, Kasper Damsø bristles at the remark.

For two years in the late 1990s, the Danish elite special forces soldier patrolled the vast, frozen expanses of Greenland’s uninhabited northeastern corner, often with only eleven dogs and one fellow soldier for company. His Sirius Patrol unit underwent the kind...