Guardian Challenge 2010
Gen. C. Robert Kehler, commander of Air Force Space Command, meets with security forces Airmen May 19, 2010, after they competed in a Guardian Challenge 2010 event. Every two years, Air Force Space Command officials host Guardian Challenge, a space and cyberspace competition. Teams from nine wings and one center, including newly added Air National Guard units, were part of GC 2010 competition events. Unlike GCs of the past, 2010's competition included cyberspace forces for the first time. (U.S. Air Force photo/Duncan Wood)