Kress von Kressenstein's Fourth Army was made up of the 3rd (Anatolian) Infantry Division's three regiments, the 31st, 32nd and 39th Infantry Regiments, totalling 16,000 men, of whom 11,000 to 11,873 were combatants, Arab ancillary forces; and one regiment of the Camel Corps. Estimates of their arms range from 3,293 to 12,000 rifles, 38 to 56 machine guns, and two to five anti-aircraft gun sections; they also fielded four heavy artillery and mountain gun batteries (30 artillery pieces) and the Pasha I formation. Nearly 5,000 camels and 1,750 horses accompanied the advance.