Staff Sgt. Sean Yates, a 27-year-old Puyallup, Wash. native and former member of the Marine Corps Color Guard, gets staff sergeant chevrons pinned on his color by his brothers during a meritorious promotion ceremony at Marine Barracks Washington, D.C., April 2. Yates previously served as the guide for the Color Guard and was the honor graduate of Corporals Course, Martial Arts Instructor Course, Foreign Weapons Instructor Course, and Sergeants Course. (Official Marine Corps photo by Cpl. Larry Babilya/Released) - Staff Sgt. Sean Yates, a 27-year-old Puyallup, Wash. native and former member of the Marine Corps Color Guard, gets staff sergeant chevrons pinned on his color by his brothers during a meritorious promotion ceremony at Marine Barracks Washington, D.C., April 2. Yates previously served as the guide for the Color Guard and was the honor graduate of Corporals Course, Martial Arts Instructor Course, Foreign Weapons Instructor Course, and Sergeants Course. (Official Marine Corps photo by Cpl. Larry Babilya/Released)