Training for an up coming combatives competition, Staff Sgt. Nathaniel Landis (on top), from Graham, Wash., the battalion motor pool sergeant and a level two combatives instructor in Headquarters Support Company, 615th Aviation Support Battalion, 1st Air Cavalry Brigade, 1st Cavalry Division, Multi-National Division - Baghdad, works for a more dominate position with Pfc. Malcom Knox, from New York, a unit supply specialist in 615th ASB, Camp Taji, Iraq, Aug. 20. The Soldiers will compete in a combatives tournament Aug. 29.