There are 13 enlisted ranks in the U.S. Army: Private, Private Second Class, Private First Class, Specialist, Corporal, Sergeant, Staff Sergeant, Sergeant First Class, Master Sergeant, First ...

Army Command Sgt. Maj. John Wayne Troxell, Senior Enlisted Adviser to the chairman of the Joint Chiefs of Staff, wearing the new SEAC rank insignia. (DoD Photo by U.S. Army Sgt. James K. McCann ...