Sergeant Major of the Army
On 16 June 1999, Army Chief of Staff Gen. Dennis J. Reimer officially unveiled and presented the Sergeant Major of the Army Flag to the residing Sgt. Maj. of the Army, Robert E. Hall.
The flag, designed by the U.S. Army Institute of Heraldry, was taken from the insignia created in 1966 to distinguish the SMA rank. The flag background is divided diagonally from the upper fly to lower hoist, in scarlet and white, with scarlet uppermost. The insignia of the SMA is centered on the flag with the fringe in yellow, cord and tassels in scarlet and white

The flag was taken from the insignia created in 1966 to distinguish the SMA rank.
The flag of the Sergeant Major of the Army incorporates a silver five-pointed star surmounted by the Coat of Arms of the United States between two white five-pointed stars at the top and two red five-pointed stars at bottom.

The historical rank of Sergeant Major General (which eventually became the current rank of Major General) was a 2 star position. Also - the standard insignia for a sergeant major (E-9) is three chevrons above three arcs with a (single) five pointed star between the chevrons and arcs. Sergeant Major of the Army (who is the senior representative of all enlisted soldiers) is also an E-9 but gets his own special insignia - with two stars. Originally it was just the two stars but in 1994 the insignia for Sergeant Major of the Army was changed to add the Coat of Arms of the United States between the two stars in the center of the insignia. There are thus two precedents for the use of a pair of stars for the Sergeant Major of the Army.

Note that the Office of the Chief of Staff, United States Army and Office of the Vice Chief of Staff, United States Army also use star pairs on their Positional colors. Both of these have the insignia of the General Staff, a five-pointed white star, surmounted