It saw active service during the First World War in the Sinai and Palestine Campaign with the ANZAC Mounted Division from 1916 to 1918.

[2] On 18 March 1908, Inverness-shire Royal Horse Artillery (Territorial Force) was proposed as a new unit and it was recognised by the Army Council on 11 June 1908.

It consisted of:[3][4][5] The battery and ammunition column included experienced men from the former Highland Royal Garrison Artillery (Volunteers).

The battery was equipped with four[1] Ehrhardt 15-pounder[7] guns and allocated as artillery support to the Highland Mounted Brigade.

2nd Line units performed the home defence role, although in fact most of these were also posted abroad in due course.

[13] The battery served with the ANZAC Mounted Division in the Sinai and Palestine Campaign throughout the rest of the war.

[20] The brigade, and its batteries, remained with the ANZAC Mounted Division for the rest of the Sinai and Palestine Campaign.

[15] At the beginning of 1918, the division was attached to XX Corps and helped to capture Jericho (19 – 21 February) and then formed part of Shea's Force for the First Trans-Jordan Raid (21 March – 2 April).

It returned to the Desert Mounted Corps for the Second Trans-Jordan Raid (30 April – 4 May), the Battle of Abu Tellul (14 July) and the capture of Amman (25 September).

The Australian brigades departed for home in March and April 1919 and the New Zealanders by the end of July.

[8] The Inverness-shire RHA was not reconstituted until 7 February 1920 when it formed a battery (later numbered 297th) in 1st Highland Brigade, Royal Field Artillery (later 75th (Highland) Field Regiment, RA) and ceased to be a Royal Horse Artillery battery.