VIII Brigade , Royal Horse Artillery VIII Brigade , Royal Horse Artillery was a brigade of the Royal Horse Artillery which existed in the early part of the 20th Century . It was dissolved at the outbreak of World War I as its constituent batteries were posted to other formations . It was briefly resurrected post - war before being dissolved once again . A related unit 8th Regiment , Royal Horse Artillery also had a brief existence post - World War II . First formation . Royal Horse Artillery brigades did not exist as an organizational or operational grouping of batteries until 1 July 1859 when the Horse Brigade , Royal Artillery was formed . The brigade system was extend to five ( later six ) brigades when the horse artillery of the Honourable East India Company had been transferred to the British Army in 1861 . These brigades were reduced to five in 1871 , then to three ( of 10 batteries each ) in 1877 and to two ( of 13 batteries each ) in 1882 . The brigade system was finally abolished in 1889 . As battery designations were tied to the brigade that the battery was assigned to , batteries were redesignated in a bewildering sequence as they were transferred between brigades . For example , E Battery of C Brigade ( E / C Bty ) might become N Battery of A Brigade ( N / A Bty ) upon transfer . Henceforth , batteries were designated in a single alphabetical sequence in order of seniority from date of formation . The brigade system was revived in 1901 . Each brigade now commanded just two batteries and a small staff ( a Lieutenant - Colonel in command , an adjutant and a brigade sergeant major ) . Initially , batteries were not assigned to brigades in any particular order , but in 1906 , at the insistence of Edward VII , brigades were redesignated so that batteries were roughly in order of seniority ( hence I Brigade commanded A Battery and B Battery ) . VIII Brigade , RHA was formed on 1 March 1901 as the XIV Brigade - Division , RHA with M Battery and Q Battery . In 1903 it was redesignated as XIV Brigade , RHA and was stationed at Woolwich . On 1 October 1906 , it was redesignated as VIII Brigade , RHA . By the time World War I broke out , the brigade was in Peshawar , India assigned to 1st ( Peshawar ) Division . M Battery was at Risalpur and on mobilization was assigned to Risalpur ( 1st ) Cavalry Brigade . It remained in India throughout the war . Q Battery was at Sialkot with 2nd ( Rawalpindi ) Division and on mobilization was assigned to the newly formed I Indian Brigade , RHA with 1st Indian Cavalry Division ( attached to 2nd ( Sialkot ) Cavalry Brigade ) and sailed for the Western Front in October 1914 . With the departure of its batteries , the brigade HQ was dissolved on 12 December 1914 . Second formation . By October 1919 , VIII Brigade , RHA was reformed in the United Kingdom with This new incarnation was short - lived , however . On 20 November 1919 Y Battery was absorbed in A Battery , on 7 January 1920 Z Battery was absorbed in B Battery and on 11 February 1920 AA Battery was absorbed in M Battery , all of I Brigade , RHA . Finally , on 14 February 1920 the Headquarters was absorbed into the HQ of I Brigade . 8th Regiment , RHA . Post - World War II plans for the Royal Horse Artillery envisioned an 8th Regiment , RHA . The was to be a Light Anti - Aircraft ( LAA ) Regiment with V , W and X Batteries . Initially formed in the British Army of the Rhine in October 1946 , the decision was rescinded in March 1947 before the regiment was fully constituted . On 1 April 1947 , the regiment became 10th Field Regiment , Royal Artillery .