Ann E. Sanford, a Brazilian Jiu Jitsu and self-defense instructor, demonstrates an evasive maneuver with the assistance of Senior Airman Laura Cook, 335th Training Squadron, to a group of 403rd Wing Airmen and family members. Sanford spent two hours Dec. 8, 2013, at the Roberts Maintenance Facility showing students Jiu Jitsu techniques, which focuses on grappling and ground fighting. (U.S. Air Force photo/Maj. Marnee A.C. Losurdo)