The Australian Mounted Division originally formed as the Imperial Mounted Division in January 1917, was a

mounted infantry Mounted infantry were infantry who rode horses instead of marching. The original dragoons were essentially mounted infantry. According to the 1911 ''Encyclopædia Britannica'', "Mounted rifles are half cavalry, mounted infantry merely specially m ...

, light horse and

yeomanry Yeomanry is a designation used by a number of units or sub-units of the British Army Reserve, descended from volunteer cavalry regiments. Today, Yeomanry units serve in a variety of different military roles. History Origins In the 1790s, f ...

division Division or divider may refer to: Mathematics *Division (mathematics), the inverse of multiplication *Division algorithm, a method for computing the result of mathematical division Military *Division (military), a formation typically consisting ...

. The division was formed in

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Medit ...

, and along with the Anzac Mounted Division formed part of

Desert Column The Desert Column was a First World War British Empire army corps which operated in the Sinai and Palestine Campaign from 22 December 1916.There is no war diary for Desert Column for December. See The Column was commanded by Lieutenant General ...

Egyptian Expeditionary Force The Egyptian Expeditionary Force (EEF) was a British Empire military formation, formed on 10 March 1916 under the command of General Archibald Murray from the Mediterranean Expeditionary Force and the Force in Egypt (1914–15), at the beginning ...

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

. The division was originally made up of the Australian

3rd Light Horse Brigade The 3rd Light Horse Brigade was a mounted infantry brigade of the Australian Imperial Force (AIF), which served in the Middle Eastern theatre of World War I. The brigade was initially formed as a part-time militia formation in the early 1900s i ...

, (formerly Anzac Mounted Division) the reconstituted 4th Light Horse Brigade, and two

British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...

yeomanry brigades; the

5th Mounted Brigade The 1st South Midland Mounted Brigade (later numbered as the 5th Mounted Brigade) was a yeomanry brigade of the British Army, formed as part of the Territorial Force in 1908. It served dismounted in the Gallipoli Campaign before being remount ...

and

6th Mounted Brigade The 2nd South Midland Mounted Brigade (later numbered as the 6th Mounted Brigade) was a yeomanry brigade of the British Army, formed as part of the Territorial Force in 1908. It served dismounted in the Gallipoli Campaign before being remounte ...

History

Formation

The Imperial Mounted Division was formed in Egypt in 1917 by bringing together two

Australian Light Horse Australian Light Horse were mounted troops with characteristics of both cavalry and mounted infantry, who served in the Second Boer War and World War I. During the inter-war years, a number of regiments were raised as part of Australia's part-t ...

brigades, two British

Yeomanry Yeomanry is a designation used by a number of units or sub-units of the British Army Reserve, descended from volunteer cavalry regiments. Today, Yeomanry units serve in a variety of different military roles. History Origins In the 1790s, f ...

brigades, and a British horse artillery brigade (four batteries). These units were: * The

was formed in Australia in October 1914 with the

8th 8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of t ...

, 9th, and 10th Light Horse Regiments and was posted to Egypt in March 1915. It was dismounted and served in Gallipoli from May to December attached to the

New Zealand and Australian Division The New Zealand and Australian Division was a composite army division raised for service in the First World War under the command of Major General Alexander Godley. Consisting of several mounted and standard infantry brigades from both New Zea ...

(notably the

Battle of Sari Bair The Battle of Sari Bair ( tr, Sarı Bayır Harekâtı), also known as the August Offensive (), represented the final attempt made by the British in August 1915 to seize control of the Gallipoli peninsula from the Ottoman Empire during the Firs ...

). It joined the ANZAC Mounted Division when it was formed in March 1916 and saw action with it at the battles of

Romani Romani may refer to: Ethnicities * Romani people, an ethnic group of Northern Indian origin, living dispersed in Europe, the Americas and Asia ** Romani genocide, under Nazi rule * Romani language, any of several Indo-Aryan languages of the Roma ...

and Magdhaba. It joined the division on formation in January 1917; it was replaced in the ANZAC Mounted Division by the British

22nd Mounted Brigade The North Midland Mounted Brigade (later numbered as the 22nd Mounted Brigade) was a yeomanry brigade of the British Army, formed as part of the Territorial Force in 1908. It served in the Sinai and Palestine Campaign in the First World War. ...

. * The 4th Light Horse Brigade was formed in Australia in February 1915 with the

11th 11 (eleven) is the natural number following 10 and preceding 12. It is the first repdigit. In English, it is the smallest positive integer whose name has three syllables. Name "Eleven" derives from the Old English ', which is first atteste ...

12th 12 (twelve) is the natural number following 11 and preceding 13. Twelve is a superior highly composite number, divisible by 2, 3, 4, and 6. It is the number of years required for an orbital period of Jupiter. It is central to many systems ...

, and 13th Light Horse Regiments and was posted to Egypt in July 1915. The brigade was broken up: the 11th Light Horse Regiment was dismounted and served in Gallipoli as reinforcements to other regiments; the 12th Light Horse Regiment was dismounted and attached to the 3rd Light Horse Brigade in Gallipoli (AugustDecember 1915) and 2nd Light Horse Brigade in Egypt (April 1915January 1917); and the 13th Light Horse Regiment remained mounted and joined the 2nd Australian Division. The brigade was reformed in January 1917with the 4th Light Horse Regiment in place of the 13th and joined the division on formation. * The

was formed as part of the

Territorial Force The Territorial Force was a part-time volunteer component of the British Army, created in 1908 to augment British land forces without resorting to conscription. The new organisation consolidated the 19th-century Volunteer Force and yeomanry ...

in 1908 as the 1st South Midland Mounted Brigade with three

regiments: the

Warwickshire Yeomanry 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 amalg ...

, the Royal Gloucestershire Hussars and the

Queen's Own Worcestershire Hussars The Queen's Own Worcestershire Hussars was a Yeomanry regiment of the British Army. First raised in 1794, it participated in the Second Boer War and World War I as horsed cavalry before being converted to an anti-tank regiment of the Royal Artill ...

. Shortly after the outbreak of war, it was assigned to the

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, ...

and moved to Egypt in April 1915. It was dismounted in August 1915 and took part in the Gallipoli Campaign as 1st Mounted Brigade, notably the

Battle of Scimitar Hill The Battle of Scimitar Hill ( Turkish: Yusufçuk Tepe Muharebesi, literally: ''Battle of the Dragonfly Hill'') was the last offensive mounted by the British at Suvla during the Battle of Gallipoli in World War I. It was also the largest single-d ...

. Due to losses and wastage during August 1915, it formed a battalion sized unit1st South Midland Regimentin

1st Composite Mounted Brigade The 1st Composite Mounted BrigadeDespite the name, the brigade was dismouted throughout its existence. was a formation of the British Army in World War I. It was formed by the 2nd Mounted Division during the Gallipoli Campaign on 4 September 191 ...

. It returned to Egypt in December where it was reformed and remounted. The 2nd Mounted Division was broken up in January 1916 and it served as Corps Troops from 21 January 1916 (numbered as 5th Mounted Brigade from April). It joined the division on formation. * The

was likewise formed as part of the Territorial Force in 1908 as the 2nd South Midland Mounted Brigade with three yeomanry regiments: the Royal Buckinghamshire Hussars, the

Berkshire Yeomanry The Berkshire Yeomanry was a part time regiment of the British Army formed in 1794 to counter the threat of invasion during the French Revolutionary Wars. It was the Royal County of Berkshire's senior volunteer unit with over 200 years of volunta ...

and the

Queen's Own Oxfordshire Hussars The Queen's Own Oxfordshire Hussars (QOOH) was a Yeomanry Cavalry regiment of the British Army's auxiliary forces, formed in 1798. It saw service in the Second Boer War with 40 and 59 Companies of the Imperial Yeomanry and was the first Yeomanry ...

. On 19 September 1914, the Queen's Own Oxfordshire Hussars was posted to the BEF, joining the 4th Cavalry Brigade in France. The

Queen's Own Dorset Yeomanry The Queen's Own Dorset Yeomanry was a yeomanry regiment of the British Army founded in 1794 as the Dorsetshire Regiment of Volunteer Yeomanry Cavalry in response to the growing threat of invasion during the Napoleonic wars. It gained its first ro ...

joined in the same month to replace them. The brigade's early service was identical to the 5th Mounted Brigade until January 1916 when it joined the

Western Frontier Force The Western Frontier Force was raised from British Empire troops during the Senussi Campaign from November 1915 to February 1917, under the command of the Egyptian Expeditionary Force (EEF). Orders for the formation of the force were issued on ...

. It joined the division on formation. *

XIX Brigade, Royal Horse Artillery (T.F.) XIX Brigade, Royal Horse Artillery (Territorial Force) was a Royal Horse Artillery brigade of the Territorial Force that was formed by the Egyptian Expeditionary Force in Palestine in January 1917 for the Imperial Mounted Division (later renamed ...

was formed for the division in January 1917 with four British Territorial Force horse artillery batteries: the 1/1st Berkshire and 1/1st Nottinghamshire Batteries of the

Royal Horse Artillery The Royal Horse Artillery (RHA) was formed in 1793 as a distinct arm of the Royal Regiment of Artillery (commonly termed Royal Artillery) to provide horse artillery support to the cavalry units of the British Army. (Although the cavalry link r ...

, and 1/A and 1/B Batteries of the

Honourable Artillery Company The Honourable Artillery Company (HAC) is a reserve regiment in the British Army. Incorporated by royal charter in 1537 by King Henry VIII, it is the oldest regiment in the British Army and is considered the second-oldest military unit in the w ...

. All four batteries had originally gone out to Egypt with the 2nd Mounted Division in April 1915, but did not proceed to Gallipoli with the division. Instead, they variously served on the Suez Canal Defences, as part of the Western Frontier Force in the Senussi Campaign, or in Aden where 1/B Battery HAC and 1/1st Berkshire RHA fought a sharp action at

Sheikh Othman Ash Shaikh Outhman District is a district of the Aden Governorate, Yemen. As of 2003, the district had a population of 105,248 inhabitants. History Sheikh Othman derives its name from a religious shrine for Sheikh Othman Al-Zubairi Al-Wahki. The ...

that removed the Turkish threat to Aden for the rest of the war. They rejoined 2nd Mounted Division on its return from Gallipoli in December 1915, however, the dismemberment of the division began almost immediately as units were posted to the Western Frontier Force, Suez Canal Defences or to various other commands. Initially, each battery was equipped with four Ehrhardt 15-pounder guns but were re-equipped with more modern

18 pounder The Ordnance QF 18-pounder,British military traditionally denoted smaller ordnance by the weight of its standard projectile, in this case approximately or simply 18-pounder gun, was the standard British Empire field gun of the First World War ...

s (four per battery) in time for the

First Battle of Gaza The First Battle of Gaza was fought on 26 March 1917 during the first attempt by the Egyptian Expeditionary Force (EEF), which was a British Empire military formation, formed on 10 March 1916 under the command of General Archibald Murray from th ...

(2627 March 1917). In practice, the batteries were tactically attached to the mounted brigades, for example, 1/1st Nottinghamshire RHA to the 3rd Light Horse Brigade and 1/A Battery HAC to the 4th Light Horse Brigade. The division was also provided with support units, mostly assigned or attached directly to the brigades, but including an engineer

squadron Squadron may refer to: * Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies * Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, ...

, a signals squadron, and

train In rail transport, a train (from Old French , from Latin , "to pull, to draw") is a series of connected vehicles that run along a railway track and transport people or freight. Trains are typically pulled or pushed by locomotives (often ...

Service history

The division joined the

alongside the ANZAC Mounted Division. During the

, the division (as the ''Imperial Mounted Division'') provided protection from counter-attack on the eastern flank while the main infantry assault was underway. The brigades became the rearguard during the withdrawal from Gaza after the attack was called off.

Battles

The division served in the Sinai and Palestine Campaign from formation through to the end of the

First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

including *

(26 and 27 March 1917) *

Second Battle of Gaza The Second Battle of Gaza was fought on 17-19 April 1917, following the defeat of the Egyptian Expeditionary Force (EEF) at the First Battle of Gaza in March, during the Sinai and Palestine Campaign of the First World War. Gaza was defended by ...

(1719 April) *

Third Battle of Gaza The Third Battle of Gaza was fought on the night of 1–2 November 1917 between British and Ottoman forces during the Sinai and Palestine Campaign of World War I and came after the British Egyptian Expeditionary Force (EEF) victory at the ...

** Battle of Beersheba (31 October) ** El Maghar (13 and 14 November) *Defence against counter-attacks before

Jerusalem Jerusalem (; he, יְרוּשָׁלַיִם ; ar, القُدس ) (combining the Biblical and common usage Arabic names); grc, Ἱερουσαλήμ/Ἰεροσόλυμα, Hierousalḗm/Hierosóluma; hy, Երուսաղեմ, Erusałēm. i ...

(27 November30 December) * Second Trans-Jordan Raid (30 April4 May 1918) *The Final Offensive **

Battle of Samakh The Battle of Samakh was fought on 25 September 1918, during the Battle of Sharon which together with the Battle of Nablus formed the set piece Battle of Megiddo fought from 19 to 25 September 1918, in the last months of the Sinai and Pales ...

(25 September) **

Capture of Damascus The Capture of Damascus occurred on 1 October 1918 after the capture of Haifa and the victory at the Battle of Samakh which opened the way for the pursuit north from the Sea of Galilee and the Third Transjordan attack which opened the way to D ...

(1 October)

Orders of battle

Notes

References

Bibliography

* * * * * * * * * * * *

External links

First AIF Order of Battle 1914–1918: Australian Mounted Division
{{Australian Light Horse Divisions of Australia in World War I Cavalry divisions Military units and formations established in 1917 Military units and formations disestablished in 1919