The 140th Wing, Colorado Air National Guard is unique in that it is comprised of four groups, 11 squadrons, and three geographically separated units (GSUs). 140th Wing operates three missions that fall under three different commands: the F-16 mission, operating under Air Combat Command; the C-21 mission, operating under Air Mobility Command; and the Space Warning mission, operating under Space Command. In addition, the Colorado Air Guard also has three GSUs, the C-21 Airlift Squadron, the 137th Space Warning Squadron, and the 240th Civil Engineering Flight, which operates under Pacific Air Forces. The 1500 personnel are permanently assigned to Buckley AFB, Greeley ANGS, Peterson AFB, and Airburst Range near Ft. Carson and make up units that provide fighter, airlift and support forces. This proud wing maintains both a Federal and State militia heritage and capability, and is prepared to support our Nation, State and local Community in times of need.