13th Cavalry Brigade ( British Indian Army ) The 1st South Midland Mounted Brigade ( later numbered as the 5th Mounted Brigade ) was a yeomanry brigade of the British Army , formed as part of the Territorial Force in 1908 . It served dismounted in the Gallipoli Campaign before being remounted to serve in the Sinai and Palestine Campaign in World War I . In April 1918 , it was merged with elements of the 3rd ( Ambala ) Cavalry Brigade to form 13th Cavalry Brigade . It remained in Palestine after the end of the war on occupation duties . Formation . Under the terms of the Territorial and Reserve Forces Act 1907 ( 7 Edw . 7 , c . 9 ) , the brigade was formed in 1908 as part of the Territorial Force . It consisted of three yeomanry regiments , a horse artillery battery and ammunition column , a transport and supply column and a field ambulance . As the name suggests , the units were drawn from the southern part of the English Midlands , predominantly Gloucestershire , Warwickshire and Worcestershire . World War I . 1st South Midland Mounted Brigade . The brigade was embodied on 4 August 1914 upon the outbreak of World War I . It moved to East Anglia and joined the 1st Mounted Division . On 2 September it was transferred to the 2nd Mounted Division and in mid November 1914 it moved with its division to Norfolk on coastal defence duties . Egypt . In April 1915 , the 2nd Mounted Division moved to Egypt , the brigade arriving at Alexandria on 24 April . In May 1915 the brigade was designated 1st ( 1st South Midland ) Mounted Brigade . It was dismounted in August 1915 and took part in the Gallipoli Campaign . Each regiment left a squadron headquarters and two troop s ( about 100 officers and men ) in Egypt to look after the horses . Gallipoli . The brigade landed at " A " Beach , Suvla Bay on the night of 17 August and moved into reserve positions at Lala Baba on the night of 20 August . On 21 August it advanced to Chocolate Hill under heavy fire and took part in the attack on Hill 112 . Due to losses during the Battle of Scimitar Hill and wastage during August 1915 , the 2nd Mounted Division had to be reorganised . On 4 September 1915 , the 1st Composite Mounted Brigade was formed from the 1st ( 1st South Midland ) , 2nd ( 2nd South Midland ) and 5th ( Yeomanry ) Mounted Brigade s . The brigade formed a battalion sized unit 1st South Midland Regiment . The brigade embarked for Mudros on 31 October and returned to Egypt in December 1915 where it was reformed and remounted . 5th Mounted Brigade . The brigade left the 2nd Mounted Division on 3 and 4 January 1916 for Es Salhia . The brigade served as Corps Troops in Egypt from 21 January 1916 . On 31 March 1916 , the remaining Mounted Brigades were numbered in a single sequence . As a consequence , the 1st South Midland Mounted Brigade was redesignated as 5th Mounted Brigade on 20 April . The 16th Machine Gun Squadron was formed as the Cavalry MG Squadron and joined the brigade in January 1917 and in the same month , the brigade joined the newly formed Imperial Mounted Division . With the division , it took part in the First and Second Battles of Gaza . The brigade remained with the Imperial Mounted Division when it was renamed Australian Mounted Division on 30 June 1917 . With the division , it took part in the Third Battle of Gaza including the Capture of Beersheba and the Battle of Mughar Ridge . It also resisted the Turkish counter - attacks in the Turkish Defence of Jerusalem . Three of the brigade ' s squadrons took part in the charge at Huj , the last British cavalry charge against enemy guns . 13th Cavalry Brigade . In March 1918 , the 2nd Indian Cavalry Division was broken up in France . The Canadian ( Canadian Cavalry Brigade ) and British units ( notably 7th Dragoon Guards , 8th Hussars and N and X Batteries RHA ) remained in France and the Indian elements were sent to Egypt . By an Egyptian Expeditionary Force GHQ Order of 12 April 1918 , the mounted troops of the EEF were reorganised when the Indian Army units arrived in theatre . On 24 April 1918 , the 2nd Mounted Division was formed on the Indian Establishment and the 5th Mounted Brigade was assigned to it . On 24 April 1918 , the 5th Mounted Brigade was merged with elements of the 3rd ( Ambala ) Cavalry Brigade : On 22 July 1918 , the 1st Mounted Division was renumbered as the 5th Cavalry Division and the brigade as 13th Cavalry Brigade . The sub units ( Signal Troop , Combined Cavalry Field Ambulance and Mobile Veterinary Section ) were renumbered on the same date . The brigade remained with 5th Cavalry Division for the rest of the war , taking part in the Affair of Abu Tellul , Battle of Megiddo , Capture of Damascus , and Occupation of Aleppo . Commanders . The 1st South Midland Mounted Brigade / 5th Mounted Brigade / 13th Cavalry Brigade had the following commanders :