4684th air base

The 4684th Air Base Group was a United States Air Force unit active during the height of the Cold War. Stationed at Thule Air Base in Greenland, the group was responsible for base operations, support, and security for U.S. and allied forces in the strategic Arctic region. Its mission included maintaining vital infrastructure to support early warning radar systems as part of North America's air defense network. The 4684th played a crucial role in sustaining American presence and readiness in the far north before being inactivated as Air Force organizational structures evolved.