Chief of Naval Operations, Adm. John M. Richardson, second left, and the Commandant of the Marine Corps, Gen. Robert B. Neller, center, listen to a debrief of a training event at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., May 25, 2016. Neller invited the CNO to observe the training to gain a better appreciation of naval integration during operations ashore. (U.S. Marine Corps photo by Staff Sgt. Gabriela Garcia/Released)