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 officer rank insignia Arnold, and Omar Bradley), while two generals were promoted to the higher rank and title of General of the Armies of the United States (George Washington and John J. Pershing). Congress created the rank of general of the armies specifically for Washington, although while living he never officially accepted the honor. Pershing received the rank in 1919 and was allowed to choose his own insignia; he chose to use four gold stars. While a conjectural design for the rank of general of the armies was proposed using six silver stars when the promotion of Douglas MacArthur to the rank was