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. The divisional order of battle changed often, as the 1st Line 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. It remained in

East Anglia East Anglia is an area in the East of England, often defined as including the counties of Norfolk, Suffolk and Cambridgeshire. The name derives from the Anglo-Saxon kingdom of the East Angles, a people whose name originated in Anglia, in ...

throughout its existence. An unrelated 1st Mounted Division was formed in July 1916, from the

3rd Mounted Division The 3rd Mounted Division was a Yeomanry Division (military), Division of the British Army active during World War I. It was formed on 6 March 1915 as the 2/2nd Mounted Division, a replacement/depot formation for the 2nd Mounted Division which wa ...

, lasting until September 1917. Another incarnation of 1st Mounted Division was created in April 1918 from the

Yeomanry Mounted Division The Yeomanry Mounted Division was a Territorial Force cavalry division formed at Khan Yunis in Palestine in June 1917 from three yeomanry mounted brigades. It served in the Sinai and Palestine Campaign of the First World War, mostly as part of ...

, 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

with

Headquarters Headquarters (commonly referred to as HQ) denotes the location where most, if not all, of the important functions of an organization are coordinated. In the United States, the corporate headquarters represents the entity at the center or the to ...

Bury St Edmunds Bury St Edmunds (), commonly referred to locally as Bury, is a historic market town, market, cathedral town and civil parish in Suffolk, England.OS Explorer map 211: Bury St.Edmunds and Stowmarket Scale: 1:25 000. Publisher:Ordnance Survey – ...

and the brigades at Ipswich,

Diss Diss or DISS may refer to: *Diss, Alberta, a place in Canada *Diss, Norfolk, a market town in England, United Kingdom **Diss railway station **Diss Rugby Club ** Diss Town F.C. *Diss grass, a Mediterranean grass *Diss (music), a song whose primary ...

and two at Bury. The division was to spend its entire existence in East Anglia. Later in the month, a decision was made to concentrate mounted troops in the Churn area of

Berkshire Berkshire ( ; in the 17th century sometimes spelt phonetically as Barkeshire; abbreviated Berks.) is a historic county in South East England. One of the home counties, Berkshire was recognised by Queen Elizabeth II as the Royal County of Berk ...

and at the end of August 1914 these were formed into a new

2nd Mounted Division The 2nd Mounted Division was a yeomanry ( Territorial Army cavalry) division that served in the First World War. At the outbreak of war it was assigned to defence of the Norfolk coast. In March 1915 it formed a 2nd Line duplicate of itself, the ...

. The original division was designated as 1st Mounted Division and gained three more 1st Line mounted brigades

South Wales South Wales ( cy, De Cymru) is a loosely defined region of Wales bordered by England to the east and mid Wales to the north. Generally considered to include the historic counties of Glamorgan and Monmouthshire, south Wales extends westwards ...

, Welsh Border, and North Midlandto replace the 1st South Midland, 2nd South Midland, and Notts. and Derby brigades. As the 1st Line mounted brigades left for overseas service, they were replaced by 2nd Line formations. As with other 2nd Line divisionswhich the 1st Mounted Division was in all but namethe 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. By the beginning of March 1916, the last 1st Line brigades had left and the division was now composed entirely of 2nd Line formations. 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 A second is the base unit of time in the International System of Units (SI). Second, Seconds or 2nd may also refer to: Mathematics * 2 (number), as an ordinal (also written as ''2nd'' or ''2d'') * Second of arc, an angular measurement unit ...

3rd Third or 3rd may refer to: Numbers * 3rd, the ordinal form of the cardinal number 3 * , a fraction of one third * Second#Sexagesimal divisions of calendar time and day, 1⁄60 of a ''second'', or 1⁄3600 of a ''minute'' Places * 3rd Street (d ...

and 4th Mounted Brigades.

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: 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,

and

4th Cyclist Brigade Fourth or the fourth may refer to: * the ordinal form of the number 4 * ''Fourth'' (album), by Soft Machine, 1971 * Fourth (angle), an ancient astronomical subdivision * Fourth (music), a musical interval * ''The Fourth'' (1972 film), a Sovie ...

s. On reorganisation, 2nd Mounted Brigadewith 2/1st Royal 1st Devon, 2/1st Montgomeryshire and 2/1st Fife and Forfar Yeomanrywas posted to the new 1st Mounted Division (

redesignated) and remained mounted. In exchange, the

12th Mounted Brigade The 3rd Mounted Division was a Yeomanry Division of the British Army active during World War I. It was formed on 6 March 1915 as the 2/2nd Mounted Division, a replacement/depot formation for the 2nd Mounted Division which was being sent abroad o ...

(2/1st London) joined as the 4th Cyclist Brigade. 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.

Other formations

Two other divisions of the British Army were named ''1st Mounted Division'' during World War I. When the original division was converted to a cyclist division in July 1916, the

was renumbered as the 1st Mounted Division as it was the only remaining mounted division. It, too, was converted to cyclists as

The Cyclist Division The 3rd Mounted Division was a Yeomanry Division of the British Army active during World War I. It was formed on 6 March 1915 as the 2/2nd Mounted Division, a replacement/depot formation for the 2nd Mounted Division which was being sent abroad o ...

on 4 September 1917. In March 1918, the

1st Indian Cavalry Division The 1st Indian Cavalry Division was a division of the British Indian Army which was formed at the outbreak of the First World War. It served on the Western Front, and was renamed the 4th Cavalry Division on 26 November 1916. In March 1918, the ...

was broken up in France. The British units remained on the

Western Front Western Front or West Front may refer to: Military frontiers *Western Front (World War I), a military frontier to the west of Germany *Western Front (World War II), a military frontier to the west of Germany *Western Front (Russian Empire), a majo ...

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

was ''indianized'' and its title was changed to

1st Mounted Division 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 ...

. On 22 July 1918, it was renumbered as the 4th Cavalry Division.

Orders of battle

Commanders

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

Notes

References

Bibliography

* * * * *

External links

* * {{British Army Divisions 1 1 Military units and formations established in 1914 Military units and formations disestablished in 1916 1914 establishments in the United Kingdom