CSAF visits Greenland
Thule supports three diverse mission sets: tactical warning of potential ballistic missile attacks against the United States and Canada as part of the Ballistic Missile Early Warning System; providing space situational awareness by tracking manmade objects in orbit; and satellite command and control.
https://www.af.mil/News/Article-Display/Article/1920962/csaf-visits-greenland/ Staff Sgt. Alexandra M. Longfellow