The Sinai and Palestine campaign of the Middle Eastern theatre of World War I was fought by the Arab Revolt and the British Empire, against the Ottoman Empire and its Imperial German allies. It started with an Ottoman attempt at raiding the Suez Canal in 1915, and ended with the Armistice of Mudros in 1918, leading to the cession of Ottoman Syria.

The campaign was generally not well known or understood during the war. In Britain, the public thought of it as a minor operation, a waste of precious resources which would be better spent on the Western Front, while the peoples of India were more interested in the Mesopotamian campaign and the occupation of Baghdad. Australia did not have a war correspondent in the area until Captain Frank Hurley, the first Australian Official Photographer, arrived in August 1917 after visiting the Western Front. Henry Gullett, the first Official War Correspondent, arrived in November 1917.

The long-lasting effect of this campaign was the Partitioning of the Ottoman Empire, when France won the mandate for Syria and Lebanon, while the British Empire won the mandates for Mesopotamia and Palestine. The Republic of Turkey came into existence in 1923 after the Turkish War of Independence ended the Ottoman Empire. The European mandates ended with the formation of the Kingdom of Iraq in 1932, the Lebanese Republic in 1943, the State of Israel in 1948, and the Hashemite Kingdom of Transjordan and Syrian Arab Republic in 1946.