Ranks and insignia of NATO armies officers
Commissioned officers' rank comparison chart of all land forces of NATO member states. For the comparison chart of the enlisted, non-commissioned officers, see Ranks and insignia of NATO armies enlisted.Officers (OF 1–10)
s and Chief Warrant Officers in the US Military rank below officers but above officer candidates and enlisted servicemen. The first warrant officer rank, WO1 does not have a "commission" associated with it, instead having a "Warrant" from the Secretary of the Army. Warrant officers are allowed the same courtesies as a commissioned officer, but may have some restrictions on their duties that are reserved for commissioned officers. Warrant officers usually receive a commission once they are promoted to Chief Warrant Officer 2. WO1s may be appointed by commission as stated in title 10 USC.