U.S. Marine Corps Lance Cpl. Joseph Graves with Fox Company, 2nd Battalion, 8th Marines (2/8), Regimental Combat Team 7 gives water to Cane, a military working dog, during Operation Nightmare in Nowzad, Afghanistan, June 6, 2013. Operation Nightmare was a clearing operation led by Afghan National Security Forces and supported by the Marines of 2/8. (U.S. Marine Corps photo by Kowshon Ye/Released)