U.S. Marine Corps Lt. Col. John Lauder, center, commanding officer, 2nd Tank Battalion, 2nd Marine Division (2nd MARDIV), awards Sandra Brooks, wife of Sgt. Maj. Brooks, with a letter of appreciation during her husband's retirement ceremony at the William P.T. Field, Camp Lejeune, N.C., April 24, 2014. Brooks retired after 30 years of military service. (U.S. Marine Corps photo by Lance Cpl. David McKenzie, 2nd MARDIV, Combat Camera/Released)