Sgt. Maj. of the Army Kenneth O. Preston, USA, Ret., has been unanimously elected by the Association of the United States Army’s Council of Trustees Executive Committee to serve on the Association’s Advisory Board of Directors.Preston will complete the unexpired portion of the term on the board held by Sgt. Maj. of the Army Jack Tilley, USA, Ret., who was previously elected by the council to serve as AUSA’s vice chairman for noncommissioned officer and soldier programs.He will also serve, as did Tilley, on the Advisory Board’s Awards Committee.Preston served as the 13th sergeant major of the Army from 2004 to 2011, and was the longest-serving Army noncommissioned officer to hold that position.