Staff Sgt. Terry Mace, 3rd Security Forces Squadron Military Working Dog handler, plays with his dog Palli April 23, 2010, at Elmendorf Air Force Base, Alaska. Sergeant Mace and Palli recently returned from Camp Taji, Iraq, where they uncovered a large weapons cache, which consisted of two AK-47s, 15 magazines of 7.62 ammunition and a box full of 200 loose rounds of ammunition. (U.S. Air Force photo/Airman 1st Class Christopher Gross)