Army Ranks For Enlisted Personnel | 台北市立動物園資訊網

...Sergeant,StaffSergeant,SergeantFirstClass,MasterSergeant,FirstSergeant​,SergeantMajor,CommandSergeantMajor,andSergeantMajoroftheArmy.

The U.S. Army has 13 enlisted ranks: private, private second class, 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.

These ranks are organized into three general layers: Junior Enlisted (E-1 through E-4 as they rise up the ranks); NCOs who serve as the backbone of leadership (E-4 through E-6); and Senior NCOs (E-7 through E-9), the officers with the most experience.

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The term as a military rank seems to come from the 16th century when individuals had the privilege of enlisting or making private contracts to serve as private soldiers in military units. Before then, many soldiers were forced (conscripted) into service by royalty or feudal lords.

Some sources claim that the use of "private" as an official "rank" dates ba...