U.S. Navy Senior Chief Petty Officer Kathryn L. VanHooser, left, a senior enlisted leader with Naval Mobile Construction Battalion 15, and Hospital Corpsman 3rd Class Patrick A. Luntey, a field medical service technician with Regional Command (Southwest), eat cake during the Hospital Corps' 115th birthday ceremony at Camp Leatherneck, Helmand province, Afghanistan, June 17, 2013. The Corpsmen celebrated their 115th birthday with a cake-cutting ceremony and reciting their Hospital Corpsman's Pledge. (U.S. Marine Corps photo by Staff Sgt. Neill A. Sevelius/Released)