160504-N-TC720-032 ROTA, Spain (May 4, 2016) Ship’s Serviceman 3rd Class Alain Hernandez, from Miami, applies a splint to Information Systems Technician 2nd Class Daniel Smith, from Covington, Georgia, during a mass casualty drill aboard USS Donald Cook (DDG 75) May 4, 2016. Donald Cook, 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 Mat Murch/Released)