Sailors aboard the guided-missile destroyer USS McCampbell (DDG 85) check a simulated casualty during a medical response drill at sea. McCampbell is part of the George Washington Carrier Strike Group based out of Yokosuka, Japan, and is conducting a patrol of the western Pacific in support of regional security and stability of the vital Asia-Pacific region. (U.S. Navy photo by Mass Communication Specialist Seaman Declan Barnes)