Patients await diagnoses from Hospital Corpsman for mock injuries sustained in combat. Exercise Vernal Tide is held in the Combat Town Training Facility, Okinawa, Japan (JPN), in support of a Medical Augmenty Program Exercise (MAPEX). Personnel from the Naval hospital are augmented to support US Marine Corps (USMC) 3rd Medical Battalion, 3rd Force Service Support Group in order to facilitate forward and rear medical attention centers as in real combat mass casualty situations