151103-N-AX546-050 MEDITERRANEAN SEA (Nov. 3, 2015) Sailors aboard USS Porter (DDG 78) participate in a mass casualty drill on the flight deck Nov. 3, 2015. Porter, an Arleigh Burke-class guided-missile destroyer, forward-deployed to Rota, Spain, is on a routine patrol 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 1st Class Sean Spratt/Released)