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
British Army officer rank insignia 1813) and different graded General officers by the combination of chevron-shaped ess pattern laces on the sleeve. During the Napoleonic wars, Field Marshals wore oak-leaf embroidered collar and cuff; and shoulder cord instead of previous pattern. It was continued till the end of 1830. At the beginning of 1831, new rank distinction was ordered for Field Marshals and General officers. After the Crimean War (30 January 1855), War Office ordered different rank badges for British General, staff and Regimental officers. It was the first complete set of rank badges to be used by the British Army. In 1868, Brigadier Generals