MOSS Detachment 4

The Morón Optical Space Surveillance System, known as Detachment 4, 21st Operations Group, in Morón, Spain, closed March 31. Data from the telescope, which had become increasingly more costly to operate, was replaced by new space surveillance systems that have come online in recent years. (U.S. Air Force photo)

21st MDG PCMH care

Capt. Erin Brown, 21st Medical Group family nurse practitioner and a member of Team Ajax, one of six PCMH teams in the Peterson Family Health Clinic, provides care to one of her enrollees. (U.S. Air Force photo)

Civil engineer squadron

PETERSON AIR FORCE BASE, Colo. -- Staff Sgt. David Sockett, 21st Civil Engineer Squadron electrical systems craftsman, pulls wires out of a street lamp Jan. 4, 2012, at a parking lot east of the softball fields. The 21st CES operates and sustains essential facilities and utility infrastructure systems on base, responding to myriad work orders daily including maintaining roads, generators, and water and electrical lines. (U.S. Air Force photo/Senior Airman Jacob Morgan)

Civil engineer squadron

PETERSON AIR FORCE BASE, Colo. -- Airman 1st Class Jerry Harrison, 21st Civil Engineer Squadron electrical systems journeyman, tests the incoming wire to a street lamp Jan. 4, 2012, at a parking lot east of the softball fields. The 21st CES operates and sustains essential facilities and utility infrastructure systems on base, responding to myriad work orders daily including maintaining roads, generators, and water and electrical lines. (U.S. Air Force photo/Senior Airman Jacob Morgan)

21st EOD flight

FORT CARSON, Colo. -- Staff Sgt. Jeremy Redfern, 21st Civil Engineer Squadron EOD technician, and his team prepare an area for the controlled detonation of recovered unexploded ordnance during a training exercise Jan. 10 at Fort Carson. Exercises like this are designed to expose Airmen to the physical and mental fatigue experienced while deployed. The Airmen from the 21st EOD flight use the training learned in these exercises to fulfill their role as a defensive force at home and while deployed. (U.S. Air Force photo/Staff Sgt. J. Aaron Breeden)

21st EOD flight

FORT CARSON, Colo. -- Master Sgt. Paul Horton, 21st Civil Engineer Squadron EOD flight chief demonstrates how to secure unexploded ordnance with a 'hook and line' kit during a training exercise Jan. 10 at Fort Carson. Exercises like this are designed to expose Airmen to the physical and mental fatigue experienced while deployed. The Airmen from the 21st EOD flight use the training learned in these exercises to fulfill their role as a defensive force at home and while deployed. (U.S. Air Force photo/Staff Sgt. J. Aaron Breeden)