EIELSON AIR FORCE BASE, Alaska – U.S. Air Force Security Forces Special Emergency Response Team member, Staff Sgt. Dean Martinez, uses a breeching tool to knock down a barricaded door as the rest of the SERT members await for access to the room during a counter-terrorism exercise held here on June 9, 2008. This training exercise is used for security forces personnel to remain current on the policies and procedures involving hostage retrieval, barricade subjects, and counter-terrorism. (U.S Air Force photo/Tech Sgt Eric T. Sheler)