This Air Force Base is named in honor of General Bernard Adolph Schriever, who pioneered in the development of the American ballistic missile programs. It is the home of the 50th Space Wing of the Air Force Space Command, and this base provides command and control for over 170 Department of Defense warning, navigational, and communications satellites. Also housed at Schriever AFB are the Missile Defense Integration and Operations Center and the Space Innovation & Development Center. Schriever AFB is the main control point for the Global Positioning System (GPS). Schriever AFB is manned by more than 8100 active duty and guard/reserve personnel, civilian employees, and contractors.