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
Royal Navy officer rank insignia of the curl. The Women's Royal Naval Service was abolished in 1994 and female officers now have the same gold rings as male officers. Part of the RN as the Senior Service, the Royal Marines uses the same rank structure and insignia that the British Army has save for the field marshal rank, and the RM initials for second lieutenants to lieutenant colonels to distinguish them from the Army itself. The major general rank since 1996 is the highest rank of the officer corps, but in the past, generals and lieutenant generals headed the Corps, and from 1857 to 1957