WRIGHT-PATTERSON AIR FORCE BASE, Ohio - Staff Sgt. Michael O’Callaghan, 445th Security Forces Squadron journeyman, teaches new combative techniques while using Senior Airman Shayne Denihan, 445 SFS helper, as a model during the July 13 unit training assembly. All security forces members are required to participate in the training. This training is specifically for SFS and is different from Army and Air Force combative training. (U.S. Air Force photo/Staff Sgt. Amanda Duncan)