The division of the empire into seven army corps districts. These were Istanbul, Edirne, Izmir, Erzincan, Damascus, Bagdad and Sana. Also there were two independent divisions Medina and Tripoli would be supplanted and a number of divisions organized each consisting of three regiments nine battalions and a training battalion. Disposition of the forces in 1911. 1909 military reformation included the creation of corps level headquarters. First Army was headquartered in Harbiye. The Second Army was headquartered in Salonika. Responsible for the Balkans and operational control over forces in Syria and Palestine. the Second Army had the first of two inspectorates. The Third Army was headquartered in Erzincan. The Fifth Army's headquarters were in Baghdad. The Fifth in Syria, and had an inspectorate. Disposition of the forces in 1912. First army in European Thrace. Second army in Balkans. Third Army in Caucasus. Fourth Army Mesopotamia. VIII Corps in Syria. XIV Corps in Arabia-Yemen Disposition of the forces in 1913. The original First army degraded during First Balkan Wars. Before the Empire entered the war, the four armies divided their forces into corps and divisions such that each division had three infantry regiments and an artillery regiment. The main units were: First Army with fifteen divisions; Second Army with 4 divisions plus an independent infantry division with three infantry regiments and an artillery brigade. The second army headquarters was located in Aleppo Syria commanding two corps made up of two divisions. Third Army with nine divisions, four independent infantry regiments and four independent cavalry regiments (tribal units); and the Fourth Army with four divisions. The Redif system had been done away with, and the plan was to have reserve soldiers fill out active units rather than constitute separate units. In August 1914, of 36 infantry divisions organized, fourteen were established from scratch and were essentially new divisions. In a very short time, eight of these newly recruited divisions went through major redeployment. By November 1914, the Second Army was moved to Istanbul and commanded the V and VI Corps, each composed of three divisions. The Ottoman concentration plan shifted major forces to European Thrace and established the defense of straits. The First and Second army located in this region. The Third army acquired new supplies for a winter offense. The force in Palestine (VIII Corps) is replaced with the Army in Mesopotamia. On March 24, 1915 5th Army and September 5, 1915 6th Army established. In February 1915 the defense of Straits was reorganized.