12th Cavalry Brigade (British Indian Army)  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. In April 1918, it was merged with elements of the 2nd (Sialkot) Cavalry Brigade to form 12th Cavalry Brigade. It remained in Palestine after the end of the war on occupation duties. Under the terms of the Territorial and Reserve Forces Act 1907 (7 Edw.7, c.9), the brigade was formed in 1908 as part of the Territorial Force. It consisted of three yeomanry regiments, a horse artillery battery and ammunition column, a transport and supply column and a field ambulance. As the name suggests, the units were drawn from the northern part of the English Midlands, predominantly Leicestershire, Lincolnshire and Staffordshire. The brigade was embodied on 4 August 1914 and assigned to Third Army of the Central Force. It moved to Norfolk and joined 1st Mounted Division in September 1914 replacing the Nottinghamshire and Derbyshire Mounted Brigade. It remained with 1st Mounted Division until October 1915 when it departed (as a mounted formation) for the Mediterranean. The Leicestershire Yeomanry left the brigade in late October 1914 and was posted to the British Expeditionary Force (BEF), joining the 7th Cavalry Brigade. It was initially replaced by the Welsh Horse Yeomanry before it transferred to the Eastern Mounted Brigade in February 1915. In May 1915, the East Riding of Yorkshire Yeomanry joined to bring the brigade back up to a three regiment strength. The brigade was replaced in 1st Mounted Division by its 2nd Line. On 27 October 1915, the brigade departed Southampton on "RMS Victorian", "Mercian" and "Nessian" for Salonika. The destination was changed at sea, and the brigade disembarked at Alexandria between 10 and 20 November 1915, then moved to Cairo. On arrival in Egypt, the North Midland Mounted Brigade was assigned to the Western Frontier Force. On 31 March 1916, the remaining Mounted Brigades were numbered in a single sequence. As a consequence, the North Midland Mounted Brigade was redesignated as 22nd Mounted Brigade. The 18th Machine Gun Squadron was formed on 8 January 1917. The brigade joined the ANZAC Mounted Division in February 1917 and took part in the First and Second Battles of Gaza.