14th Cavalry Brigade ( British Indian Army ) The Nottinghamshire and Derbyshire Mounted Brigade ( later numbered as the 7th 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 Salonika and Sinai and Palestine Campaign s in World War I . In April 1918 , it was merged with elements of the 9th ( Secunderabad ) Cavalry Brigade to form 14th 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 Nottinghamshire and Derbyshire . World War I . Nottinghamshire and Derbyshire Mounted Brigade . The brigade was embodied on 4 August 1914 upon the outbreak of World War I . Initially , it concentrated in Berkshire and on 5 August 1914 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 arriving at Alexandria between 19 and 21 April and was posted to Cairo by the middle of May . In May 1915 , the brigade was designated 3rd ( Nottinghamshire and Derbyshire ) 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 Suvla Bay on the night of 17 / 18 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 on the right flank of 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 2nd Composite Mounted Brigade was formed from the 3rd ( Notts and Derby ) and 4th ( London ) Mounted Brigade s . The brigade formed a battalion sized unit 3rd Nottinghamshire and Derbyshire Regiment . The brigade embarked for Mudros on 2 November and returned to Egypt in December 1915 where it was reformed and remounted . 7th Mounted Brigade . The brigade left the 2nd Mounted Division on 18 and 19 January 1916 . In February 1916 the brigade was sent to take part in the Salonika Campaign . On 31 March 1916 , the remaining Mounted Brigades were numbered in a single sequence . As a consequence , the Nottinghamshire and Derbyshire Mounted Brigade was redesignated as 7th Mounted Brigade . The brigade arrived back in Egypt from Salonika in June 1917 , less the Derbyshire Yeomanry which remained in Macedonia as GHQ Troops with the British Salonika Army . The brigade served variously as Corps Troops with the Desert Mounted Corps and XXI Corps and on attachment to the Yeomanry Mounted Division . 14th 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 7th Mounted Brigade was assigned to it . On 24 April 1918 , the 7th Mounted Brigade was merged with elements of the 9th ( Secunderabad ) Cavalry Brigade : On 22 July 1918 , the 1st Mounted Division was renumbered as the 5th Cavalry Division and the brigade as 14th 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 Nottinghamshire and Derbyshire Mounted Brigade / 7th Mounted Brigade / 14th Cavalry Brigade had the following commanders :