Pituffik Space Base — Pituffik, Greenland

Pituffik Space Base, formerly known as Thule Air Base, is a United States Space Force installation located in northwestern Greenland, one of the northernmost military facilities in the world. THU is not a civilian airport and does not offer scheduled commercial passenger service; instead, it supports missile warning systems, satellite tracking, and Arctic strategic operations critical to North American defense. Originally established during the Cold War, the base has long served as a key outpost for monitoring polar airspace and maintaining a U.S. military presence in the Arctic region. Extreme cold, isolation, and limited daylight during winter months define operating conditions at this remote installation. Pituffik remains a strategically vital facility supporting American and allied defense interests in the High Arctic.