This theatre was the largest of all the theatres of WWI. It had four main campaigns. In the Sinai and Palestine Campaign, mainly British forces defeated the Turkish army. In the Mesopotamian Campaign, British forces, mainly the British Indian Army, also defeated the Turkish army. In the Caucasus Campaign, Turkey fought against the Russian Empire and other forces. In the Dardanelles Campaign the Turkish army defeated British forces, mainly colonial. There were also minor campaigns in Arabia and Southern Arabia, Aden, and Persia.
Fighting here began on October 29, 1914 and ended on October 30, 1918. A peace treaty was signed on August 10, 1920.
This list includes World War I and later conflicts (after 1914) of at least 100 fatalities each Prolonged conflicts are listed in the decade when initiated; ongoing conflicts are marked italic, and conflicts with +100,000 killed with bold.