U.S. Army Sgt Charles Wogerman and his military working dog, Staff Sgt. Alex assigned to 2nd Battalion, 320th Field Artillery Regiment, 1st Brigade Combat Team, 101st Airborne Division, relax after searching bags for possible explosive materials on Forward Operating Base Bostic, Kunar province, Afghanistan, April 18, 2013. Afghan National Security Forces conduct air movement to transport Afghanistan Local Police to Dashe Toup Training Center. (U.S. Army photo by Spc. Vang Seng Thao/Released)