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 by the Coat of Arms of the United States.
In which countries military. Please be specific with your questions.
There are three ranks within the pay grade of E9 - Sergeant Major, Command Sergeant Major, and Sergeant Major of the Army. There is only one Sergeant Major of the Army.
There is no such rank as Medic Sergeant Major of the Army. There is a Sergeant Major of the Army and regardless of his specialty, it is just SMA.
The first Sergeant Major of the US Army was appointed on July 1, 1966.
No, there is no rank of "Major Sergeant" in the Army Rangers. The ranks in the U.S. Army Rangers follow the same structure as the rest of the Army, including ranks such as Private, Sergeant, Lieutenant, Captain, and Colonel.
FORSCOM does not have it's own Sergeant Major of the Army - there is only one SMA in the entire Army. The Command Sergeant Major of FORSCOM holds the rank of Command Sergeant Major, and this post is currently filled by CSM Ronald T. Riling. The current Sergeant Major of the Army is SMA Kenneth O. Preston.
It's Sergeant Major of the Army (there is no "Command" in the title), and the post is currently held by SMA Raymond F. Chandler.
The United States army consists of twelve ranks. They are, in order of rank, Private, Private First Class, Specialist, Corporal, Sergeant. Staff Sergeant, Sergeant First Class, Master Sergeant, First Sergeant, Sergeant Major, Command Sergeant Major, and Sergeant Major of the Army.
Command Sergeant Major is the highest enlisted rank in the US Army
There is no US Army Sergeant Major badge. There is a rank insignia, but it is not an awarded badge. There are three different insignia for the rank of Sergeant Major (E-9). Sergeant Major - Three stripes on top and three stripes on bottom with one star in the middle. Command Sergeant Major - Three stripes on top and three stripes on bottom with one star and wreath and in the middle. Sergeant Major of the Army - Three stripes on top and three stripes on bottom with two stars and eagle in the middle. See related links for pictures of US Enlisted rank insignia.
Edgar Allan Poe held the rank of Sergeant Major in the Army.
Sergeant Major of the Army
Because he is the SGM of the Army. The only one in the Army.