A non-commissioned officer is an enlisted leader, petty officer, or in some cases warrant officer, who does not hold a commission. Non-commissioned officers usually earn their position of authority by
A sergeant of the Coldstream Guards addressing through the ranks during the rehearsal for the Trooping the Colour ceremony.
Sergeant, Royal Artillery, on the esplanade of Edinburgh Castle, firing the one o'clock gun
A First Sergeant with the 55th Signal Company (Combat Camera) gets his soldiers ready for a uniform inspection
Sergeant major is a senior non-commissioned rank or appointment in many militaries around the world.
Non-commissioned officer
…rank tier since 1930, except for certain technical and maintenance units from 1945 to 1975. The NCOs are called specialists, and rank from sergeant to sergeant major (NATO ranks OR5–OR9). The Specialist Corps lance corporal and corporal ranks (OR2–OR4) are reserved for enlisted personnel, while the rank of private…
Warrant officer class 1 rank badge 1951–2002
Warrant officer class 2 rank badge 1951–2002