U.S. Marine Sgt. Maj. Donna A. Dunbar, sergeant major,

U.S. Marine Sgt. Maj. Donna A. Dunbar, sergeant major, 4th Recruit Training Battalion, Recruit Training Regiment, Marine Corps Recruit Depot Parris Island, addresses the audience during the 4th Battalion relief and appointment ceremony aboard Marine Corps Recruit Depot Parris Island, S.C., July 18, 2014. The relief and appointment ceremony represents the transfer of responsibility, authority and accountability from the outgoing sergeant major to the incoming sergeant major. (U.S. Marine Corps photo by Lance Cpl. Allison Lotz MCRD Parris Island Combat Camera/Released)