It served with the division thereafter in the Sinai and Palestine Campaign and was broken up after the end of World War I.

[3] XIX Brigade, Royal Horse Artillery (Territorial Force) was formed for the division with[4][b] The batteries had been assigned to the 2nd South Midland, Nottinghamshire and Derbyshire, London, and South Eastern Mounted Brigades, respectively, at the outbreak of the war.

[9] Instead, they variously served on the Suez Canal Defences,[10] as part of the Western Frontier Force in the Senussi Campaign,[5] or in Aden where B Battery, HAC and Berkshire, RHA fought a sharp action at Sheikh Othman that removed the Turkish threat to Aden for the rest of the war.

[22] The brigade, and its batteries, served with the Australian Mounted Division throughout the rest of the Sinai and Palestine Campaign.

As part of the Desert Mounted Corps, the division took part in the Third Battle of Gaza, in particular the Capture of Beersheba (31 October) and the Battle of Mughar Ridge (13 and 14 November), and the defence of Jerusalem against the Turkish counter-attacks (27 November – 3 December).

The next day, a strong Turkish force attacked from the direction of Jisr ed Damiye and soon the artillery was in danger.