150513-N-AT895-189 WASHINGTON (May 13, 2015) Secretary of Defense Ashton Carter announces during a Pentagon press briefing that he has recommended Adm. John M. Richardson, left, as the next Chief of Naval Operations (CNO) and Gen. Mark A. Milley as the next Chief of Staff of the Army. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)