190416-N-QR145-029 VARNA, Bulgaria (April 16, 2019) Ensign Drake Davis, right, gives a tour to Bulgarian press aboard the Arleigh Burke-class guided-missile destroyer USS Ross (DDG 71) in Varna, Bulgaria, April 16, 2019. Ross, forward-deployed to Rota, Spain, is on its eighth patrol 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 2nd Class Krystina Coffey/Released)