Palestine Campaign After its return to Egypt, the regiment – along with the rest of the 1st Light Horse Brigade – became part of the ANZAC Mounted Division, and was given responsibility for the defence of the Suez Canal from raiding Senussi Arabs. On 4 August 1916, they fought in the Battle of Romani, before being withdrawn to rest and refit. The regiment rejoined the brigade in November and took part in the battles of Maghaba and Rafa in December 1916 and January 1917. This was followed by defeat in the Second Battle of Gaza in April 1917, and then the successful Battle of Beersheba and the Third Battle of Gaza in October and November. The regiment followed up the retreating Ottoman forces and fought in the Battle of Mughar Ridge, the Battle of Nebi Samwill, the Battle of Jerusalem, the Battle of Jaffa, the capture of Jericho, the attack on Amman, the attack on Es Salt and finally, in September and October 1918, the Battles and Megiddo and Nablus. The Ottoman Empire signed the Armistice of Mudros on 30 October 1918, bring the war to an end. No longer required, the regiment sailed for Australia in March 1919 and subsequently disbanded. Their campaigns in the First World War cost them 158 men killed and 653 men wounded. Perpetuation In 1921, the decision was made to perpetuate the honours and traditions of the AIF by reorganising the units of the Citizens Force to replicate the numerical designations of their related AIF units. As a result, the 3rd Light Horse was re-raised as a part-time unit based in the 4th Military District, which encompassed the state of South Australia and part of New South Wales. Adopting the designation of the "South Australian Mounted Rifles", it assumed the lineage of several previously existing militia units, including the 22nd Light Horse (South Australian Mounted Rifles) that had been formed in 1912. This unit traced its lineage back to the 16th Australian Light Horse Regiment (South Australian Mounted Rifles), which had been formed in 1903 as part of the amalgamation of Australia's colonial forces into the Australian Army after Federation. At the outbreak of the Second World War, the 3rd Light Horse was assigned to the 4th Cavalry Brigade, which was part of the 1st Cavalry Division. In December 1941, the regiment was re-organised as a reconnaissance company, adopting the designation of the 3rd