See also: List of units of the British Army Territorial Force 1908.
The Territorial Force was established on 1 April 1908 as a volunteer auxiliary to the British Army. It was formed by the amalgamation of the former auxiliary institutions of the Volunteer Force and the yeomanry. Designed primarily as a home defence force, its members could not be compelled to serve overseas unless they volunteered to do so. On the outbreak of the First World War in 1914, many did. The first units were deployed piecemeal in support of the regular army as it defended against the opening German offensive in Belgium and France in 1914. The first territorial divisions to be deployed were used to free up imperial garrisons overseas, but in 1915 they began to be deployed to the front lines on the Western Front and at Gallipoli. The pre-war territorial divisions were numbered in May 1915 in order of their deployment. As they were deployed, second-line divisions were raised to replace them at home, and in 1916 these began to be deployed to combat zones. By the end of the war in 1918, the Territorial Force had provided 28 divisions and 14 mounted brigades.[1] [2] [3] [4]
The original mounted brigades were:[33]
A number of yeomanry divisions were also formed:
Name | Formed | Theatre | Notes | References | |
---|---|---|---|---|---|
1st Mounted Division | August 1914 | Home defence | Became the 1st Cyclist Division in July 1916. Disbanded November 1916. | [34] | |
2nd Mounted Division | September 1914 | Gallipoli Campaign | Fought dismounted at Gallipoli. Disbanded January 1916. | [35] | |
3rd Mounted Division | March 1915 | Home defence | Formed as the second-line 2/2nd Mounted Division. Renamed to 3rd Mounted Division March 1916. Renamed to 1st Mounted Division July 1916. Renamed to Cyclist Division September 1917. Disbanded June 1919. | [36] | |
4th Mounted Division | March 1916 | Home defence | Renamed to 2nd Cyclist Division July 1916. Disbanded November 1916. | [37] | |
Yeomanry Mounted Division | July 1917 | Sinai and Palestine Campaign | Lost its yeomanry affiliation April 1918, becoming an Indian division and renamed to 1st Mounted Division. | [38] | |
74th (Yeomanry) Division | April 1917 | Sinai and Palestine Campaign Western Front | Formed from dismounted yeomanry. Transferred to France May 1918. Disbanded July 1919. | [39] |
Also considered divisions of the Territorial Force were: