The referee watches closely as Spc. De Andre Jackson (being held inside), from San Francisco, a generator mechanic for Headquarters Support Company, 615th Aviation Support Battalion, 1st Air Cavalry Brigade, 1st Cavalry Division, Multi-National Division ? Baghdad, trys to get out of the grasp of his opponent during a combatives tournament, Aug. 29, Camp Taji, Iraq. Jackson lost this fight to the judges' decision and placed fourth in his weight class.