The Warwickshire Yeomanry was a yeomanry regiment of the British Army, first raised in 1794, which served as cavalry and machine gunners in the First World War and as a cavalry and an armoured regiment in the Second World War, before being amalgamated into the Queen's Own Warwickshire and Worcestershire Yeomanry in 1956. The lineage is maintained by B Squadron, part of The Royal Yeomanry.
The Royal Wiltshire Yeomanry (RWY) was a Yeomanry regiment of the Kingdom of Great Britain and the United Kingdom established in 1794. It was disbanded as an independent Territorial Army unit in 1967, a time when the strength of the Territorial Army was greatly reduced. The regiment lives on in B Squadron of the Royal Wessex Yeomanry.
The South Nottinghamshire Hussars is a unit of the British Army formed as volunteer cavalry in 1794. Converted to artillery in 1922, it presently forms part of 103 Regiment, Royal Artillery.
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 on active service. In March 1916, it was renumbered as the 3rd Mounted Division and in July 1916 as the 1st Mounted Division. In September 1917, the division was reorganized as a cyclist formation and redesignated as The Cyclist Division. It remained in the United Kingdom throughout the war and was disbanded in June 1919.
The 2nd Cavalry Division was a division of the regular British Army that saw service in the Peninsular War and in World War I, when it also known as Gough's Command, after its commanding general. It was part of the British Expeditionary Force that served in France in from 1914 to 1918. It was involved in most of the major actions where cavalry were used as a mounted mobile force, and also many where the troops were dismounted and effectively served as infantry.
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 throughout its existence.
The Royal Buckinghamshire Yeomanry is an Operational Hygiene Squadron of the Royal Logistic Corps, originally formed as cavalry in 1794, and has also served in artillery and signals roles. The lineage is continued by 710 Operational Hygiene Squadron, Royal Logistic Corps.
The Pembroke Yeomanry was an auxiliary regiment of the British Army dating back to 1794. It saw active service in the French Revolutionary War, the Second Boer War, World War I and World War II. Its lineage is maintained by 224 Transport Squadron, part of 157 (Welsh) Regiment RLC in the Army Reserve.
The Welsh Horse Yeomanry was a yeomanry regiment of the British Army that served in the First World War. The regiment was raised shortly after the outbreak of the war. Initially it served in East Anglia on anti-invasion duties, before being dismounted in 1915 and sent to take part in the Gallipoli Campaign. After withdrawal to Egypt, it was amalgamated with the 1/1st Montgomeryshire Yeomanry as the 25th Battalion, Royal Welch Fusiliers and served as such throughout the rest of the war. It took part in the Sinai and Palestine Campaign in 1917 and 1918, before being transferred to the Western Front where it remained until the end of the war. The regiment formed 2nd and 3rd Lines in 1914, but these never left the United Kingdom before being disbanded in 1916 and early 1917, respectively. The 1st Line was disbanded in 1919.
The 4th Mounted Division was a short-lived Yeomanry Division of the British Army active during World War I. It was formed on 20 March 1916, converted to 2nd Cyclist Division in July 1916 and broken up on 16 November 1916. It remained in England on Home Defence duties throughout its existence.
The 63rd Division of the British Army was a second-line Territorial Force division, formed in 1914, which served on home defence duties during the First World War. The division was formed as a duplicate of the 50th (Northumbrian) Division in 1914, composed primarily of soldiers recruited in north-eastern England. It remained on home defence and training duties in the north-east and east of England until 1916, when it was disbanded. Several of its constituent units would later serve overseas, deployed for support and garrison duties in almost every theatre of the war.
The Eastern Mounted Brigade was a formation of the Territorial Force of the British Army, organised in 1908. After serving dismounted in the Gallipoli Campaign, it was absorbed into the 3rd Dismounted Brigade in Egypt in February 1916.
The 1st South Western Mounted Brigade was a formation of the Territorial Force of the British Army, organised in 1908. By 1915 its regiments had been posted away so it was broken up; it never saw active service as a brigade. The Headquarters may have formed the HQ for 2/1st Southern Mounted Brigade.
The 18th Mounted Brigade, previously known as the 2/1st Yorkshire Mounted Brigade, was a 2nd Line yeomanry brigade of the British Army during the First World War. In July 1916 it was converted to a cyclist formation as 11th Cyclist Brigade and in November 1916 was redesignated as 7th Cyclist Brigade. It was still in existence, in Ireland, at the end of the war.
The 17th Mounted Brigade previously known as the 2/1st Welsh Border Mounted Brigade was a 2nd Line yeomanry brigade of the British Army during the First World War. In July 1916 it was converted to a cyclist formation as 10th Cyclist Brigade and in November 1916 was redesignated as 6th Cyclist Brigade. It was still in existence, in Ireland, at the end of the war.
The 20th Mounted Brigade previously known as the 2/1st Lowland Mounted Brigade was a 2nd Line yeomanry brigade of the British Army during the First World War. In July 1916 it was converted to a cyclist formation as 13th Cyclist Brigade and in November 1916 was redesignated as 9th Cyclist Brigade. It was still in existence, in Ireland, at the end of the war.
The 19th Mounted Brigade previously known as the 2/1st Scottish Horse Mounted Brigade was a 2nd Line yeomanry brigade of the British Army during the First World War. In July 1916 it was converted to a cyclist formation as 12th Cyclist Brigade and redesignated as 8th Cyclist Brigade in November 1916. It was still in existence, in Ireland, at the end of the war.
The 2nd Mounted Brigade previously known as the 2/2nd South Western Mounted Brigade was a second line yeomanry brigade of the British Army during the First World War.
The Welsh Border Mounted Brigade was a formation of the Territorial Force of the British Army, organised in 1908. After home defence service, it was posted to Egypt, where it was absorbed into the 4th Dismounted Brigade in March 1916.
The South Wales Mounted Brigade was a formation of the Territorial Force of the British Army, organised in 1908. After home defence service, it was posted to Egypt, where it was absorbed into the 4th Dismounted Brigade in March 1916.
United Kingdom 
British Army 