After the success of the 1st South African Infantry Brigade against the Italians at the El Wak border post on 16 December 1940, Lieutenant-General Alan Cunningham was intent on opening access into the Galla-Sidamo area across the Chalbi Desert by advancing eastwards from the eastern side of Lake Rudolf and to support a possible rebellion by the Shifta tribe against the Italians. This was the first offensive to be assigned to 1 SA Division. The division then consisted of the 2nd and 5th SA Brigades (located at Marsabit), the 25th East African Brigade (at Lokitaung) as well as six companies of the 2nd Abyssinian Irregulars. Almost on a daily basis, division infantry and armoured cars crossed the Dida Galgalla in search of enemy patrols. The Italians maintained a well established outpost at Turbi Hills, from which they had clear observation of any vehicle or troop movements in the Dida Galgalla. From December 1940 to February 1941 patrols had never been able to engage Italian patrols or elements as they withdrew deeper into Abyssinia on sighting the South African patrols entering the Dida Galgalla, only to return the next day.