21st OG
PETERSON AIR FORCE BASE, Colo. – Col. Chris Crawford (left), 21st Space Wing commander, passes the 21st Operations Group guidon to Lt. Col. Paul Tombarge, interim 21st OG commander, at a change of command March 29. Tombarge, who was recently selected for promotion to the rank of colonel, was the 21st OG deputy commander. The outgoing commander, Col. Jennifer Moore, will deploy to U.S. Air Forces Central Command in southeast Asia. (U.S. Air Force photo/Robb Lingley)