US Navy (USN) SEAMAN (SN) Arik A. Griesse (left), a Hospital Corpsman (HC), applies moulage to a patient to simulate chemical burns as directed by scenarios in support of 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