British Army officer rank insignia were ordered to wear the same collar as other General officers, but no device in the collar. In 1880, War Office ordered to move rank badges from collar to shoulder. In 1921, the War Office abolished the rank of Brigadier General and introduced a new rank called Colonel Commandant (Officer commanding a Brigade) or Colonel on the staff (officer not commanding a Brigade, but staff officer). The badges of Colonel Commandant and Colonel on the staff were the same, consisting of a crown and three stars. In 1928, Brigadier rank was introduced by abolishing the ranks of Colonel Commandant and
United States Navy officer rank insignia as a line officer or as a staff corps officer. Unrestricted Line (URL) and Restricted Line (RL) officers wear an embroidered gold star above their rank of the naval service dress uniform while staff corps officers, and chief warrant officers wear unique specialty devices. The chief warrant officer and staff corps devices are also worn on the left collar of uniforms. Footnotes United States Navy officer rank insignia In the United States Navy, officers have various ranks. Equivalency between services is by pay grade. United States Navy commissioned officer ranks have two distinct sets of rank insignia: On dress uniform