151202-N-NX690-076 MEDITERRANEAN SEA (Dec. 2, 2015) Operations Specialist 3rd Class E. Hernandez stands lookout watch aboard aircraft carrier USS Harry S. Truman (CVN 75). Harry S. Truman 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 and Africa. (U.S. Navy photo by Mass Communication Specialist 3rd Class J. M. Tolbert/Released)