160616-N-CL027-391 MEDITERRANEAN SEA (June 16, 2016) Secretary of the Navy (SECNAV) Ray Mabus salutes Sailors aboard the guided-missile destroyer USS Mason (DDG 87) during a visit to highlight the Great Green Fleet initiative. Mason, deployed as part of the Eisenhower Carrier Strike Group, is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe. (U.S. Navy photo by Mass Communications Specialist 3rd Class Janweb B. Lagazo/Released)