Staff Sgt. Kevin Davis, 20th Security Forces Squadron Military Working Dog trainer from Shaw Air Force Base, S.C., and MWD, Marky, demonstrates arm bite techniques during the Air Combat Command MWD training workshop at Langley AFB, Va., Aug. 25, 2011. The workshop was developed seven years ago by Chris Jakubin, Air Force Academy Kennel master, to fill voids in training. (U.S. Air Force photo by Staff Sgt. Jeff Nevison/Released)