How many Sergeant Majors of the Army (SMA) have there been?

The correct number of Sergeant Majors of the Army (SMA) is recognized as 13. This position was established in 1966, and since then, there have been 13 individuals who have served in this pivotal role, which serves as the senior enlisted advisor to the Chief of Staff of the Army. Each SMA has contributed to shaping the Army's policies and addressing the needs of enlisted soldiers across various challenges and changes within the military framework. The historical context of the role and the specific individuals who have held the position emphasize its significance within the Army’s leadership structure. Understanding this number is important for those studying Army history and the evolution of its leadership hierarchy.