Members of the 633rd Security Forces Squadron military working dog team, perform a demonstration for children and parents at the 2011 Operation Hero event at Langley Air Force Base, Va., Nov. 19, 2011. The Tenth Annual Operation Hero event was hosted to give children of Airmen insight into what their parents experience during the deployment process. (U.S. Air Force photo by Airman 1st Class Camilla Griffin/Released)