<P> Kenneth O. Preston held the rank from 15 January 2004 through 28 February 2011, the only incumbent to serve longer than four years . SMA Raymond F. Chandler III was succeeded by Command Sergeant Major Daniel A. Dailey, on 30 January 2015 . </P> <P> While the SMA is a non-commissioned officer, protocol places the SMA higher than all lieutenant generals . </P> <P> The rank and position were based on those of the Sergeant Major of the Marine Corps (established in its current incarnation on 23 May 1957). The Chief of Staff of the Army created the position in 1966 after asking leaders of the major commands for a personal recommendation . He asked that it not be considered a near - retirement type assignment . He listed seven duties and functions he expected the Sergeant Major to perform, including service as a personal adviser and assistant on matters pertaining to enlisted soldiers . From 4,700 proposed candidates, 21 nominees were selected . Finally chosen was the only one then serving in Vietnam, Sergeant Major William O. Wooldridge of the 1st Infantry Division . </P> <P> The other services later followed, creating the positions of Master Chief Petty Officer of the Navy and Chief Master Sergeant of the Air Force in 1967, Master Chief Petty Officer of the Coast Guard in 1969, and Senior Enlisted Advisor to the Chairman in 2005 . These six positions are collectively referred to as "senior enlisted advisors" ("SEAs"). </P>

When was the sergeant major of the army established