151205-N-XT273-310 VARNA, Bulgaria (Dec. 5, 2015) Information System Technician 3rd Class Robert Hetrick stands top-side rover watch aboard USS Ross (DDG 71) before pulling out of Varna, Bulgaria Dec. 5, 2015. Ross, an Arleigh Burke-class guided-missile destroyer, forward deployed to Rota, Spain, is conducting a routine patrol 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 2nd Class Justin Stumberg/Released)