Check Six
Tech. Sgt. Amanda Leal fights off Staff Sgt. Angel Logan during an insider threat exercise at Al Udeid Air Base, Qatar, April 24, 2014. After numerous insider attacks on service members on military installations, the U.S. Air Forces Central Command area of responsibility implemented the Check Six program to instill a self-defense culture where all Airmen are trained and mentally prepared to react to any act of violence. The program was part of Check Six training to ensure Airmen remain vigilant. Leal and Logan are assigned to the 379th Expeditionary Civil Engineering Squadron. (U.S. Air Force photo/Tech. Sgt. Trevor Pedro)