Inside the Danish Military's Largest-Ever Greenland Defense Drill

Greenland is a self-governing territory of the Kingdom of Denmark, a NATO member that controls the island's security policy. Its position as a natural barrier between Russia and North America makes it important for the U.S. and President Trump, which has only one active base on the island.

The Danish Armed Forces take WSJ inside its operation as it sets out to prove to the U.S. and Russia that it is capable of defending Greenland. We gained rare access to Denmark's operations in the vast Arctic landscape: in the air, on land and at sea