page_title: Australian Light Horse
section_title: Gallipoli and the Sinai and Palestine campaign
hierarchical_section_title: Australian Light Horse / World War I / Gallipoli and the Sinai and Palestine campaign
caption_attribution_description: Australian camps on slopes of Olivet &amp; Mt. Scopus.
context_page_description: 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-time military force. These units were gradually mechanised either before or during World War II, although only a small number undertook operational service during the war. A number of Australian light horse units are still in existence today.
context_section_description: At the start of World War I, Australia committed to provide an all volunteer expeditionary force of 20,000 personnel known as the Australian Imperial Force, which would consist of an infantry division and a light horse brigade. As Australia's commitment to the war increased, the size of the light horse contingent was expanded, with a second and third light horse brigade being raised in late 1914 and early 1915. Eventually, the Australian Light Horse regiments were organised into five brigades:
  1st Light Horse Brigade consisted of the 1st, 2nd, 3rd Light Horse Regiments.
  2nd Light Horse Brigade consisted of the 5th, 6th, 7th Light Horse Regiments.
  3rd Light Horse Brigade consisted of the 8th, 9th, 10th Light Horse Regiments.
  4th Light Horse Brigade consisted of the 4th, 11th, 12th Light Horse Regiments.
  5th Light Horse Brigade consisted of the 14th and 15th Light Horse Regiments, in combination with the French 1er Regiment Mixte de Cavalerie du Levant and the New Zealand 2nd Machine Gun Squadron.
  The light horse regiments' first involvement in the fighting during the war came during the Gallipoli Campaign, where the troops of the 1st, 2nd and 3rd Light Horse Brigades were sent to Gallipoli without their horses to provide reinforcements for the infantry. During the campaign they were used mainly in a defensive role, although the light horsemen did participate in several costly battles, such as the Battle of the Nek. After the evacuation of the Gallipoli peninsula in December 1915, the light horse regiments that had been deployed were re-constituted in Egypt and in March 1916, the Australian mounted troops of the 1st, 2nd and 3rd Light Horse Brigades and the New Zealand Mounted Rifles Brigade were placed together in the Anzac Mounted Division.
  Elements of the light horse brigades also undertook a campaign against the Senussi in the western desert region of Egypt with actions commencing in late 1915 and continuing through until 1917. These actions were largely limited though, and were overshadowed by the Light Horse's involvement in the fighting against Ottoman forces in the Sinai and Palestine Campaign from 1916 to 1918.
  A reorganisation of the mounted troops was ordered in February 1917 leading to the formation of the Anzac Mounted Division consisting of the 1st and 2nd Light Horse Brigades, the New Zealand Mounted Rifles Brigade, and the British 22nd Mounted Brigade. Meanwhile, the Imperial Mounted Division was formed from the 3rd and 4th Light Horse Brigades and the British Yeomanry 5th and 6th Mounted Brigades. The Imperial Mounted Division's name was soon changed to the Australian Mounted Division at the request of the Australian government. The arrival of more yeomanry from Salonika prompted the raising of the Yeomanry Mounted Division (6th, 8th and 22nd Yeomanry Brigades) in June 1917. The three mounted divisions and the Imperial Camel Brigade formed the Desert Mounted Corps under the command of Lieutenant General Harry Chauvel. With the removal of most of the Yeomanry to France and the breakup of the Imperial Camel Corps, the newly formed 5th Light Horse Brigade took its place with the Australian Mounted Division. Two Indian cavalry divisions replaced the Yeomanry Division in the Desert Mounted Corps.
caption: An Australian light horse encampment on Mount Olivet and Mount Scopus near Jerusalem, 1918.
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