15th (Imperial Service) Cavalry Brigade | |
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Memorial to the Imperial Service Cavalry Brigade, New Delhi.
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Active | October 1914 – January 1920 |
Country | British India |
Allegiance |
British Crown Indian States rulers |
Branch | Imperial Service Troops |
Type | Cavalry |
Size | Brigade (~ 1,700 men) |
Part of |
Egyptian Expeditionary Force Imperial Mounted Division XXI Corps Australian Mounted Division Desert Mounted Corps 2nd Mounted (later 5th Cavalry Division) |
Engagements | |
Commanders | |
Notable commanders |
William A. Watson Cyril R. Harbord |
The 15th (Imperial Service) Cavalry Brigade was a brigade-sized formation that served alongside British Empire forces in the Sinai and Palestine Campaign, during the First World War. Originally called the Imperial Service Cavalry Brigade it was formed from Imperial Service Troops provided by the Indian Princely States of Hyderabad, Mysore, Patiala and Jodhpur, which each provided a regiment of lancers. A maximum of three regiments served in the brigade at any one time. The states of Bhavnagar, Kashmir, Kathiawar and Idar provided smaller detachments for the brigade, which was at times reinforced by other British Empire regiments and artillery batteries when on operations.
In October 1914, the Imperial Service Cavalry Brigade was moved by sea to Egypt to become part of the Force in Egypt defending the Suez Canal. In the first three years of the war, the soldiers were involved in several small-scale battles connected to the First Suez Offensive, but spent most of their time patrolling in the Sinai Desert and along the west bank of the canal. It was not until November 1917 as part of the Egyptian Expeditionary Force that the Imperial Service Cavalry Brigade was involved in the Third Battle of Gaza. The following year the brigade joined the 5th Cavalry Division when it became the 15th (Imperial Service) Cavalry Brigade and played an active role in the British victory over Turkish forces in Palestine.