Two Navy corpsmen stand by for direction while a Navy doctor assesses the condition of a sailor role playing as a casualty during a field exercise at Camp Lejeune, N.C., on April 22, 1998. The medical personnel from the Camp Lejeune Naval Hospital are working in the field out of a modern, highly mobile expeditionary tent hospital. The 2nd Medical Battalion, 2nd Force Service Support Group, 2nd Marine Expeditionary Force is conducting the field exercise.