Staff Sgt. Victoria Dames, a 35th Security Forces Squadron military working dog handler, carries MWD Elvis during the second annual security forces advanced combat skills assessment at Andersen Air Force Base, Guam, June 6, 2017. The Defenders Challenge provided Airmen with invaluable interaction with other security forces members by exchanging tactics and skills between those in attendance. (U.S. Air Force photo by Airman 1st Class Gerald R. Willis)