Jeremy Alf works with Jeremy Robinson, 3rd Medical Group, on how to dislodge a gun and throw the attacker off when pinned on his back. Alf, who works in the 3rd MDG as a cardiopulmonary technician, teaches Krav Maga Mondays from 6-8 p.m. at Geronimo gym, Fort Richardson, Alaska.(U.S. Air Force photo/Airman 1st Class Christopher Gross)