Secretary of the Navy Ray Mabus, and Chief of Naval Operations Adm. John M. Richardson and Commandant of the Marine Corps Gen. Robert B. Neller, attend the Center for 21st Century Security and Intelligence with Michael O'Hanlon, center, at the Brookings Institution, Washington, D.C., Feb. 26, 2016. Mabus, Richardson, and Neller discussed the future maritime concepts, strategies and technologies with O'Hanlon as the moderator. (U.S. Marine Corps photo by Staff Sgt. Gabriela Garcia/Released)
<br>Unit: HQMC Combat Camera
Staff Sgt. Gabriela Garcia
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