Royal Navy officer rank insignia the Corps also had the unique ranks of colonel second commandant and colonel commandant. Rank insignia are on brown or dark blue shoulder boards in all dresses save for the combat and barracks duty dress uniforms. From 1911 to 1957 the officer corps even included warrant officers and commissioned warrant officers in the same way as the RN. Although the Royal Marines does not officially use the rank of field marshal, the Captain General Royal Marines, the ceremonial head of the corps, wears a field marshal's rank insignia. Royal Navy officer rank insignia Uniforms for naval officers were not authorised
United States Army enlisted rank insignia United States Army enlisted rank insignia The chart below shows the current enlisted rank insignia of the United States Army, with seniority, and pay grade, increasing from left to right. Enlisted ranks of corporal and higher are considered non-commissioned officers (NCOs). The rank of specialist is a soldier of pay grade E-4 who has not yet attained non-commissioned officer status. It is common that a soldier may never be a corporal and will move directly from specialist to sergeant, attaining NCO status at that time. In the beginning, US army enlisted rank was indicated by colored epaulettes. The use of