The 3rd Light Horse Regiment was a mounted infantry regiment of the Australian Army during the First World War. The regiment was raised in September 1914, and by December as part of the 1st Light Horse Brigade had moved overseas. The regiment only fought against the forces of the Ottoman Empire, in Egypt, at Gallipoli, on the Sinai Peninsula, and in Palestine and Jordan. After the armistice the regiment eventually returned to Australia in March 1919. For its role in the war the regiment was awarded nineteen battle honours.

The Battle of Rafa, also known as the Action of Rafah, fought on 9 January 1917, was the third and final battle to complete the recapture of the Sinai Peninsula by British forces during the Sinai and Palestine campaign of the First World War. The Desert Column of the Egyptian Expeditionary Force (EEF) attacked an entrenched Ottoman Army garrison at El Magruntein to the south of Rafah, close to the frontier between the Sultanate of Egypt and the Ottoman Empire, to the north and east of Sheikh Zowaiid. The attack marked the beginning of fighting in the Ottoman territory of Palestine.