Having two salients extending into Ethiopia, Cunningham and Brink decided to consolidate and to secure their lines of supply in face of the oncoming rainy season which would make the Chalbi desert impassable. The key to supply in the area were the towns of Mega and Moyale, overlooking the two major roads into Abyssinia from Kenya. These were to be taken in a two brigade assault, by first attacking Mega (Map 1: Point 2) and then Moyale (Map 1: Point 3).