160525-N-AT895-478 TWENTYNINE PALMS, Calif. (May 25, 2016) Chief of Naval Operations (CNO) Adm. John Richardson and Commandant of the Marine Corps Gen. Robert Neller observe Marines and Sailors with 2d Battalion, 8th Marines conduct urban warfare training on Range 220, also known as Combined Arms Military Operations in Urban Terrain (CAMOUT), at Marine Corps Air Ground Combat Center Twentynine Palms. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)