At the start of World War I, the air forces of the Allied forces were small and primitive. Most of the available aircraft and pilots were assigned to the Western Front. This meant that the Indian Army, which was attacking the Ottoman Empire in Mesopotamia, had no air support. On 8 February 1915, the Australian government received a request for air assistance from the British Government of India. The AFC was still in its infancy and could provide enough aircrews and ground staff for only half a flight: the unit therefore became known as the Mesopotamian Half-Flight, or Australian Half-Flight and Captain Henry Petre was appointed commander.