The British exerted control of the Ogaden beginning in 1941 as part of the Anglo-Ethiopian Agreement, administering the Haud as part of their adjacent colony of British Somaliland, although Ethiopian sovereignty was still recognized in the area.
Somalia's government did not want to indirectly recognize any Ethiopian sovereignty over the area.
It was the climactic battle of the First Italo-Ethiopian War, securing Ethiopian sovereignty and ending Italian attempts at its conquest for another three and a half decades.
With the surrender of the Italians, the British, under pressure from the US administration, signed an agreement acknowledging Ethiopian sovereignty in January 1942.
Carter remained mostly neutral during the conflict, insisting that Somalia was violating Ethiopian sovereignty.
Zenawi, who was in good terms with Rayaale's government, sees certain prominent ministers of Ahmed Silanyo's government, among them Mohamed Hashi Elmi and the the now departed Dr. Gaboose, as staunch supporters of Somaliweyn (greater Somalia), hence a threat to the Ethiopian sovereignty.
In January 1942, with the final official surrender of the Italians, the British, under pressure from the American administration, signed an interim Anglo-Ethiopian Agreement with Emperor Haile Selassie I acknowledging Ethiopian sovereignty.
As a result of the disaster, Italy was forced to sign the Treaty of Addis Ababa guaranteeing Ethiopian sovereignty.
Although he had collaborated with the British against the Mahdists, Ras Alula chief interest was to guarantee Ethiopian sovereignty, which made him very wary towards the English whom he suspected supported the Italians' encroachments.
It was the climactic battle of the First Italo-Ethiopian War, securing Ethiopian sovereignty.