160615-N-KK394-296 MEDITERRANEAN SEA (June 15, 2016) - Cmdr. Chris Gilbertson, commanding officer of the guided-missile destroyer USS Mason (DDG 87), and Stephen Aldridge, executive officer, observe as the Mason conducts a replenishment-at-sea with the Italian oiler ITS Etna (A5326). 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 Communication Specialist 3rd Class Anderson W. Branch/Released)