229th Brigade ( United Kingdom ) The 2nd Dismounted Brigade was a formation of the British Army in World War I . It was formed in Egypt in February 1916 by absorbing the Highland Mounted Brigade and the 2nd South Western Mounted Brigade . In October it absorbed the remnants of the 1st Dismounted Brigade . The brigade served as part of the Western Frontier Force and the Suez Canal Defences . In January 1917 , the brigade was reorganized and redesignated as the 229th Brigade and joined the 74th ( Yeomanry ) Division in March . It served with the division in the Sinai and Palestine Campaign and on the Western Front . 2nd Dismounted Brigade . Formation . The 2nd Dismounted Brigade was formed in Egypt in February 1916 by absorbing the Highland Mounted Brigade and the 2nd South Western Mounted Brigade . The Highland Mounted Brigade had served dismounted in the Gallipoli Campaign from 26 September to 19 December 1915 assigned to the 2nd Mounted Division . Similarly , the 2nd South Western Mounted Brigade served in Gallipoli from 9 October until 19 December 1915 attached at various times to 11th ( Northern ) Division , 2nd Mounted Division and 53rd ( Welsh ) Infantry Division . Both brigades were withdrawn to Egypt in December 1915 and formed part of the Western Frontier Force . The 2nd Dismounted Brigade was formed as part of the Western Frontier Force with the following composition : Reorganised . On 27 September 1916 , the 1 / 1st and 1 / 2nd Lovat ' s Scouts ( along with a company of the 1 / 3rd Scottish Horse ) were merged to form the 10th ( Lovat ' s Scouts ) Battalion , Queen ' s Own Cameron Highlanders at Cairo . The battalion was transferred to Salonika , arriving 20 October , where it joined 82nd Brigade , 27th Division . On 1 October 1916 , 1 / 1st Scottish Horse and 1 / 2nd Scottish Horse of the 1st Dismounted Brigade were amalgamated to form 13th ( Scottish Horse Yeomanry ) Battalion , Black Watch . As the 1st Dismounted Brigade had now been reduced to just two regiments ( 1 / 1st Ayrshire Yeomanry and 1 / 1st Lanarkshire Yeomanry ) , it was dissolved and the remaining elements absorbed into the 2nd Dismounted Brigade . The brigade served as part of the Western Frontier Force and on the Suez Canal Defences . 229th Brigade . The brigade was with the Suez Canal Defences when , on 14 January 1917 , Egyptian Expeditionary Force ( EEF ) Order No . 26 instructed that the 2nd , 3rd and 4th Dismounted Brigade s be reorganized as the 229th , 230th and 231st Brigades . Consequently , the 2nd Dismounted Brigade was redesignated 229th Brigade at el Ferdan ( near Ismailia ) on 15 January . The brigade units were reorganized in January 1917 : On 23 February , the GOC EEF ( Lt - Gen Sir A . J . Murray ) sought permission from the War Office to form the 229th , 230th and 231st Brigades into a new division . The War Office granted permission and the new 74th ( Yeomanry ) Division started to form . The 229th Brigade joined the division at el Arish between 7 and 9 March . 229th Brigade remained with 74th ( Yeomanry ) Division for the rest of the war . Palestine 1917 - 18 . With the 74th Division , the brigade took part in the invasion of Palestine in 1917 and 1918 . It fought in the Second and Third Battles of Gaza ( including the capture of Beersheba and the Sheria Position ) . At the end of 1917 , it took part in the capture and defence of Jerusalem and in March 1918 in the Battle of Tell ' Asur . On 3 April 1918 , the Division was warned that it would move to France and by 30 April 1918 had completed embarkation at Alexandria . Before departure for France , the 4th Machine Gun Company joined 209th ( of 230th Brigade ) , 210th ( of 231st Brigade ) and 261st MG Companies to form 74th Battalion , Machine Gun Corps . It concentrated at Alexandria between 17 and 30 April and departed for France with the division on the latter date . France and Flanders 1918 . In May 1918 , the brigade landed at Marseilles , France with 74th ( Yeomanry ) Division . It served in France and Flanders with the division for the rest of the war . By 18 May , the division had concentrated around Rue in the Abbeville area . Here the dismounted Yeomanry underwent training for service on the Western Front , particularly gas defence . Due to a lack of replacements , infantry divisions on the Western Front had been reduced from 12 to 9 battalions in January and February 1918 . To conform with this new structure , on 21 June , 12th Royal Scots Fusiliers , 12th Norfolk Regiment ( of 230th Brigade ) and 24th Royal Welsh Fusiliers ( of 231st Brigade ) left 74th ( Yeomanry ) Division . They were used to reconstitute 94th Brigade of 31st Division which was renamed 94th ( Yeomanry ) Brigade on that date . On 14 July 1918 the Yeomanry Division went into the line for the first time , near Merville on the right of XI Corps . From September 1918 , as part of III Corps of Fourth Army , it took part in the Hundred Days Offensive including the Second Battle of the Somme ( Second Battle of Bapaume ) and the Battles of the Hindenburg Line ( Battle of Épehy ) . In October and November 1918 it took part in the Final Advance in Artois and Flanders . By the Armistice it was east of Tournai , Belgium , still with 74th ( Yeomanry ) Division . With the end of the war , the troops of 74th Division were engaged in railway repair work and education was undertaken while demobilisation began . The division and its subformations were disbanded on 10 July 1919 . Commanders . The 2nd Dismounted Brigade / 229th Brigade had the following commanders during its existence : Colonel R . Hoare ( promoted to Brigadier - General on 5 August 1914 ) was the commander of the 2nd South Western Mounted Brigade from 1 April 1912 . He took command of 2nd Dismounted Brigade on formation .