Both A Battery and B Battery went to Suez in April 1915. In July, B Battery fought in the recapture of Sheikh Othman (key to the water supply to Aden) from the Turks as part of the Aden campaign. In February 1917, both batteries took part in the Palestine Campaign, were in action at the First and Second Battle of Gaza and entered Jerusalem in December 1917. In the German counter-attack during the Second action of Es Salt on 1 May 1918, A Battery was forced to make a rapid withdrawal under heavy fire, which resulted in the loss of all its guns. Both A and B Batteries took part in the Battle of Megiddo in September.