190408-N-QR145-025 MEDITERRANEAN SEA (April 8, 2019) Electrician's Mate 3rd Class Francis Murray sets electrical isolation during a main space fire drill aboard the Arleigh Burke-class guided-missile destroyer USS Ross (DDG 71) in the Mediterranean Sea, April 8, 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 Europe and Africa. (U.S. Navy photo by Mass Communication Specialist 2nd Class Krystina Coffey/Released)