Cmdr. Marc Christensen briefs Combined Endeavor 2010 delegation chiefs in Grafenwoehr, Germany.

100831-F-6875C-022
GRAFENWOEHR, Germany (Aug. 31, 2010) Cmdr. Marc Christensen, exercise director, briefs Combined Endeavor 2010 delegation chiefs in Grafenwoehr, Germany. Combined Endeavor 2010 is the world's largest communications interoperability exercise, preparing international forces command, control, communications and computer systems for multinational operations. (U.S. Air Force photo by Staff Sgt. Tim Chacon/Released)

100831-F-6875C-022
 GRAFENWOEHR, Germany (Aug. 31, 2010) Cmdr. Marc Christensen, exercise director, briefs Combined Endeavor 2010 delegation chiefs in Grafenwoehr, Germany. Combined Endeavor 2010 is the world's largest communications interoperability exercise, preparing international forces command, control, communications and computer systems for multinational operations. (U.S. Air Force photo by Staff Sgt. Tim Chacon/Released)