It was formed in April 1918 when three brigades already in Palestine were merged with elements of the 2nd Indian Cavalry Division withdrawn from the Western Front.
[1] By an Egyptian Expeditionary Force GHQ Order of 12 April 1918, the mounted troops of the EEF were reorganised when the Indian Army units arrived in theatre.
The sub units (Signal Troops, Combined Cavalry Field Ambulances and Mobile Veterinary Sections) were renumbered on the same date.
[9] 1/1st Royal Gloucestershire Hussars 9th Hodson's Horse 18th King George's Own Lancers 19th Machine Gun Squadron 13th Cavalry Brigade Signal Troop 13th Combined Cavalry Field Ambulance, RAMC 13th Mobile Veterinary Section 1/1st Sherwood Rangers Yeomanry 20th Deccan Horse 34th Prince Albert Victor's Own Poona Horse 20th Machine Gun Squadron 14th Cavalry Brigade Signal Troop 14th Combined Cavalry Field Ambulance, RAMC 14th Mobile Veterinary Section Mysore Lancers 1st Hyderabad Lancers 1st Jodhpur Lancers 15th I.S.
However, demobilization began immediately and most of the British war time units had left by the middle of 1919.