160804-N-FP878-051MEDITERRANEAN SEA (Aug. 4, 2016) – Sailors respond to a toxic gas drill during a damage control training team evolution aboard USS Ross (DDG 71) August 4, 2016. Ross, an Arleigh Burke-class guided-missile destroyer, forward-deployed to Rota, Spain, 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 1st Class Theron J. Godbold/Released)