First Lt. Steven Hamby, left, a logistics officer with Special Troops Battalion, 2nd Advise and Assist Brigade, 1st Infantry Division, United States Division – Center and a Fort Walton Beach, Fla., native, promotes Staff Sgt. Sang Jang, second from left, a logistics non-commissioned officer with Headquarters and Headquarters Company, STB and an Orange County, Calif., native, to the rank of sergeant first class March 5 at Camp Liberty, Iraq.