1st Mounted Division
1st Cyclist Division
Active5 August 1914 – 16 November 1916
Country United Kingdom
Branch British Army
TypeYeomanry
Bicycle infantry
SizeDivision
ServiceWorld War I
Commanders
Notable
commanders		Edwin Alderson
Robert George Broadwood

The 1st Mounted Division was a Yeomanry Division of the British Army active during World War I. It was formed in August 1914 for the home defence of the United Kingdom from four existing mounted brigades of the Territorial Force, each of three regiments of Yeomanry.[1] The divisional order of battle changed often, as the 1st Line[lower-alpha 1] brigades left for service overseas and were replaced by 2nd Line formations. It was converted to the 1st Cyclist Division in July 1916, and was broken up in November 1916 without being involved in active service.[1] It remained in East Anglia throughout its existence.

An unrelated 1st Mounted Division was formed in July 1916, from the 3rd Mounted Division, lasting until September 1917. Another incarnation of 1st Mounted Division was created in April 1918 from the Yeomanry Mounted Division, lasting until July 1918.

History

1st Mounted Division

The Mounted Division was formed on 5 August 1914, immediately after the outbreak of World War I, from four existing mounted brigades of the Territorial Force – Eastern, 1st South Midland, 2nd South Midland, and Notts. and Derby. It was assembled in East Anglia with Headquarters at Bury St Edmunds and the brigades at Ipswich, Diss and two at Bury. The division was to spend its entire existence in East Anglia.[5]

Later in the month, a decision was made to concentrate mounted troops in the Churn area of Berkshire and at the end of August 1914 these were formed into a new 2nd Mounted Division. The original division was designated as 1st Mounted Division and gained three more 1st Line[lower-alpha 1] mounted brigades – South Wales, Welsh Border, and North Midland – to replace the 1st South Midland, 2nd South Midland, and Notts. and Derby brigades.[5]

As the 1st Line mounted brigades left for overseas service, they were replaced by 2nd Line formations. As with other 2nd Line divisions – which the 1st Mounted Division was in all but name – the division experienced considerable problems with regard to equipment and personnel. Even as late as July 1915, some Royal Horse Artillery batteries were without guns, wagons or harnesses, machine guns were lacking and few of the men had fired a recruits' course of musketry.[5]

By the beginning of March 1916, the last 1st Line brigades had left and the division was now composed entirely of 2nd Line formations.[5] On 31 March 1916, the remaining mounted brigades were ordered to be numbered in a single sequence and the division now commanded the 1st, 2nd, 3rd and 4th Mounted Brigades.[4]

1st Cyclist Division

In July 1916 there was a major reorganization of 2nd Line yeomanry units in the United Kingdom. All but 12 regiments were converted to cyclists:[4] the rest were dismounted, handed over their horses to the remount depots and were issued with bicycles. The 1st Mounted Division was reorganized as the 1st Cyclist Division, now commanding the 1st, 2nd, 3rd and 4th Cyclist Brigades.[5] On reorganisation, 2nd Mounted Brigade – with 2/1st Royal 1st Devon, 2/1st Montgomeryshire and 2/1st Fife and Forfar Yeomanry – was posted to the new 1st Mounted Division (3rd Mounted Division redesignated) and remained mounted.[6] In exchange, the 12th Mounted Brigade (2/1st London) joined as the 4th Cyclist Brigade.[7]

A further reorganization in November 1916 saw the 1st Cyclist Division broken up. The cyclist brigades were dispersed and the yeomanry regiments were amalgamated in pairs to form Yeomanry Cyclist Regiments in new cyclist brigades.[5]

Other formations

Two other divisions of the British Army were named 1st Mounted Division during World War I.[8]

When the original division was converted to a cyclist division in July 1916, the 3rd Mounted Division was renumbered as the 1st Mounted Division as it was the only remaining mounted division.[lower-alpha 2] It, too, was converted to cyclists as The Cyclist Division on 4 September 1917.[11]

In March 1918, the 1st Indian Cavalry Division was broken up in France. The British units remained on the Western Front and the Indian elements were sent to Egypt.[12] 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 Yeomanry Mounted Division was indianized[lower-alpha 3] and its title was changed to 1st Mounted Division.[13] On 22 July 1918, it was renumbered as the 4th Cavalry Division.[14]

Orders of battle

Commanders

The 1st Mounted Division / 1st Cyclist Division had the following commanders:[31]

FromRankName
5 August 1914Major-GeneralE.A.H. Alderson
29 September 1914Lieutenant GeneralR.G. Broadwood

See also

Notes

  1. 1 2 In accordance with the Territorial and Reserve Forces Act 1907 (7 Edw. 7, c.9) which brought the Territorial Force into being, the TF was intended to be a home defence force for service during wartime and members could not be compelled to serve outside the country. However, on the outbreak of war on 4 August 1914, many members volunteered for Imperial Service. Therefore, TF units were split into 1st Line (liable for overseas service) and 2nd Line (home service for those unable or unwilling to serve overseas) units.[2] 2nd Line units performed the home defence role, although most of these were also posted abroad in due course.[3] Likewise, existing pre-war formations (brigades and divisions) formed duplicate 2nd Lines with the same structure as their 1st Line parents.[4]
  2. ↑ The 2nd Mounted Division was broken up in Egypt on 21 January 1916[9] and the 4th Mounted Division was reformed as the 2nd Cyclist Division at the same time that the 1st Mounted Division became the 1st Cyclist Division.[10]
  3. ↑ British divisions were converted to the British Indian Army standard whereby brigades only retained one British regiment or battalion and most support units were Indian (artillery excepted).
  4. ↑ 1/1st Essex Yeomanry left the Eastern Mounted Brigade on 1 December 1914 and joined the 8th Cavalry Brigade in France.[16][17] It was replaced by 2nd King Edward's Horse.[18]
  5. 1 2 2nd King Edward's Horse replaced 1/1st Essex Yeomanry in Eastern Mounted Brigade in December 1914; it left on 1 February 1915 for the Canadian Cavalry Brigade.[18] In turn, it was replaced by the Welsh Horse Yeomanry in February 1915.[19][20]
  6. 1 2 1/1st Welsh Horse Yeomanry replaced 1/1st Leicestershire Yeomanry in North Midland Mounted Brigade in early 1915. It transferred to the Eastern Mounted Brigade in February 1915, replacing 2nd King Edward's Horse.[19][20]
  7. ↑ 1/1st Leicestershire Yeomanry left the North Midland Mounted Brigade on 3 November 1914 and joined the 7th Cavalry Brigade in France.[23][24] They were replaced by 1/1st Welsh Horse Yeomanry in early 1915.[19][20]
  8. ↑ 1/1st East Riding of Yorkshire Yeomanry replaced 1/1st Welsh Horse Yeomanry in the North Midland Mounted Brigade in May 1915.[25][26]
  9. 1 2 Becke[7] does not show the cyclist battalions as being attached to the division in May or July 1916, but shows them assigned to the cyclist brigades in September 1916. It is reasonable to assume that they remained attached to the division in the interim.

References

  1. 1 2 Baker, Chris, "The 1st Mounted Division, TF 1914–1918", The Long, Long Trail, archived from the original on 22 April 2008
  2. ↑ Rinaldi 2008, p. 35
  3. ↑ Baker, Chris. "Was my soldier in the Territorial Force (TF)?". The Long, Long Trail. Retrieved 19 February 2015.
  4. 1 2 3 4 5 6 7 James 1978, p. 36
  5. 1 2 3 4 5 6 Becke 1936, p. 7
  6. 1 2 Becke 1936, p. 22
  7. 1 2 Becke 1936, p. 5
  8. ↑ Becke 1936, p. 35
  9. ↑ Becke 1936, p. 17
  10. ↑ Becke 1936, p. 27
  11. ↑ Becke 1936, p. 19
  12. ↑ Perry 1993, p. 16
  13. ↑ Becke 1936, p. 34
  14. ↑ Perry 1993, p. 22
  15. 1 2 3 4 5 Becke 1936, p. 4
  16. ↑ James 1978, p. 18
  17. ↑ Baker, Chris. "The Essex Yeomanry". The Long, Long Trail. Retrieved 9 April 2015.
  18. 1 2 James 1978, p. 16
  19. 1 2 3 4 James 1978, p. 30
  20. 1 2 3 Baker, Chris. "The Welsh Horse Yeomanry". The Long, Long Trail. Archived from the original on 12 April 2015. Retrieved 9 April 2015.
  21. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Becke 1936, p. 6
  22. ↑ Westlake 1996, pp. 271, 277, 278, 282
  23. ↑ James 1978, p. 22
  24. ↑ Baker, Chris. "The Leicestershire Yeomanry". The Long, Long Trail. Retrieved 9 April 2015.
  25. ↑ James 1978, pp. 31–32
  26. ↑ Baker, Chris. "The East Riding of Yorkshire Yeomanry". The Long, Long Trail. Retrieved 9 April 2015.
  27. ↑ Becke 1936, p. 28
  28. ↑ James 1978, pp. 17, 27
  29. 1 2 3 4 5 6 7 Becke 1936, p. 3
  30. 1 2 Becke 1936, p. 20
  31. ↑ Becke 1936, p. 1

Bibliography

  • Becke, Major A.F. (1936). Order of Battle of Divisions Part 2A. The Territorial Force Mounted Divisions and the 1st-Line Territorial Force Divisions (42–56). London: His Majesty's Stationery Office. ISBN 1-871167-12-4.
  • James, Brigadier E.A. (1978). British Regiments 1914–18. London: Samson Books Limited. ISBN 0-906304-03-2.
  • Perry, F.W. (1993). Order of Battle of Divisions Part 5B. Indian Army Divisions. Newport: Ray Westlake Military Books. ISBN 1-871167-23-X.
  • Rinaldi, Richard A (2008). Order of Battle of the British Army 1914. Ravi Rikhye. ISBN 978-0-97760728-0.
  • Westlake, Ray (1996). British Regiments at Gallipoli. Barnsley: Leo Cooper. ISBN 0-85052-511-X.
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