This list includes cavalry regiments assigned to
Corps of the
British Army in the period 1916–19. On the outbreak of
World War I the establishment of a British infantry division included a
cavalry squadron for reconnaissance and escort duties. From 1915 these were primarily provided by mounted units of the
Special Reserve or
Yeomanry regiments of the
Territorial Force. Early in 1916 the divisional cavalry squadrons were transferred to Army Corps level and formed into composite regiments.[1] However,
Trench warfare conditions on the
Western Front reduced the utility of mounted troops, and in 1917 most of the corps cavalry regiments were dismounted and drafted as infantry reinforcements, converted into corps
cyclist battalions or machine gun battalions. A few were reinstated (at squadron strength) during 1918. On the other fighting fronts corps cavalry units continued until
demobilisation in 1919. The corps cavalry units formed during the war were as follows:[2][3]
II Corps Cavalry Regiment: 1/1st Yorks Dragoons 12 May 1916–October 1917) – transferred to Cavalry Corps; returned as II Corps Cyclist Battalion (from 16 March 1918)
IV Corps Cavalry Regiment: 1st KEH (1 June 1916 – 17 July 1917; November–15 December 1917);
1/1st Northumberland Hussars (December 1917–8 October 1918)
VI Corps Cavalry Regiment:
1/1st Northamptonshire Yeomanry (May 1916–summer 1917); B Sqn Herts Yeomanry (12 July 1916–early 1917)[6] – transferred to VIII Corps Cavalry Rgt
VIII Corps Cavalry Regiment:
1/1st Lancashire Hussars (May 1916–July 1917); B Sqn Herts Yeomanry (27 May–6 July 1917) – transferred to
Egypt, then XXI Corps Cavalry Rgt[6]
IX Corps Cavalry Regiment: A & B Sqns 1/1st RWY (21 June 1916–late November 1916); C Sqn 1/1st Hants Carabiniers (17 June 1916 – 25 July 1917); RHQ 1/1st Hants Carabiniers (17 June 1916 – 25 July 1917); A & B Sqns 1/1st Hants Carabiniers (January 1917–25 July 1917); A & B Sqns SIH (November 1916–16 January 1917)
X Corps Cavalry Regiment: C Sqn NIH (11 May 1916–August 1917), S Sqn
6th (Inniskilling) Dragoons and B Sqn NIH (21 June 1916–August 1917)
XI Corps Cavalry Regiment:
1/1st Westmorland and Cumberland Yeomanry (less A Sqn) (15 May 1916 – 21 July 1917); Corps served in
Italy from 1 December 1917 to 13 March 1918:[7][8] 1st KEH (15 December 1917–May 1918; A Sqn remained with corps)
XIII Corps Cavalry Regiment: 1/1st Northumberland Hussars (April 1916–August 1917); C Sqn 1st KWH (May–October 1918); 1/1st Northumberland Hussars (returned 1 October 1918)
XIV Corps Cavalry Regiment: A & B Sqns 2nd KEH, S Sqn
21st Lancers (June 1916–July 1917); Corps transferred to Italy 5 November 1917:[7][10] 1/1st Northants Yeomanry (10 November 1917); Corps became GHQ British Force in Italy 18 April 1918[11] and Corps Cavalry became GHQ Troops
XV Corps Cavalry Regiment: A & B Sqns SIH (May–November 1916), C Sqn 1/1st Surrey Yeomanry 11–19 May 1916); 1/1st RWY (November 1916–3 September 1917)
XVII Corps Cavalry Regiment:
1/1st Yorkshire Hussars (May 1916–26 August 1917), B Sqn 1/1st Surrey Yeomanry (8 July–4 September 1916); transferred to Macedonia,[13] then XVI Corps Cavalry Rgt
XVIII Corps Cavalry Regiment: A & B Sqns SIH (1 January–August 1917), B Sqn Herts Yeomanry (1 January –27 May 1917),[6] F Sqn (to complete 2nd SIH) (27 May–August 1917); 1st KEH (17 July–November 1917)
XXI Corps Cavalry Regiment: In Palestine:[15] A Sqn 1/1st DLOY, A Sqn 1/1st Herts Yeomanry,[16] C Sqn QORGY (from August 1917); B Sqn 1/1 Herts replaced C Sqn QORGY (9 May 1918)[6]
XXII Corps: Not formed until 31 December 1917,[17] no cavalry assigned
Maj A.F. Becke,History of the Great War: Order of Battle of Divisions, Part 4: The Army Council, GHQs, Armies, and Corps 1914–1918, London: HM Stationery Office, 1944/Uckfield: Naval & Military Press, 2007, ISBN 1-847347-43-6.
Brig-Gen Sir
James E. Edmonds, History of the Great War: Military Operations, France and Belgium, 1916, Vol I, London: Macmillan,1932/Woking: Shearer, 1986, ISBN 0-946998-02-7/Uckfield: Naval & Military Press, 2021, ISBN 978-1-78331-615-1.
Brig-Gen Sir James E. Edmonds & Maj-Gen H.R. Davies, History of the Great War: Military Operations, Italy 1915–1919, London: HM Stationery Office, 1949/Imperial War Museum, 1992, ISBN 978-0-901627742.
J.B.M. Frederick, Lineage Book of British Land Forces 1660–1978, Vol I, Wakefield: Microform Academic, 1984, ISBN 1-85117-007-3.
Brig E.A. James, British Regiments 1914–18, London: Samson Books, 1978, ISBN 0-906304-03-2/Uckfield: Naval & Military Press, 2001, ISBN 978-1-84342-197-9.
Brig-Gen F.J. Moberly, History of the Great War: The Campaign in Mesopotamia, Vol III, London: HM Stationery Office, 1925/Imperial War Museum and Battery Press, 1997, ISBN 978-089839289-0.
Lt-Col J.D. Sainsbury, The Hertfordshire Yeomanry: An Illustrated History 1794–1920, Welwyn: Hertfordshire Yeomanry and Artillery Historical Trust/Hart Books, 1994, ISBN 0-948527-03-X.