Petty Officer 2nd Class Donnell E. Proctor, from Fort Washington, Md., a hospital corpsman with 2nd Marine Logistics Group (Forward), sang the national anthem during a cake cutting ceremony in commemoration of the 113th birthday of the hospital corps aboard Camp Leatherneck, Afghanistan, June 17, 2011. More than 150 service members and civilians celebrated the birthday with a 5 km run at 6 a.m. and then in the afternoon with a ceremony and cake.