Ethiopia Completes Second Phase Of Filling Africa’s Largest Dam, Angering Egypt And Sudan Ethiopia Completes Second Phase Of Filling Africa’s Largest Dam, Angering Egypt And Sudan Comments Off on Ethiopia Completes Second Phase Of Filling Africa’s Largest Dam, Angering Egypt And Sudan NICOSIA, Cyprus — The announcement by Ethiopia that it completed the second phase of filling the giant Grand Renaissance Dam (GERD), Africa’s largest dam, angered Egypt and Sudan. Egypt, which used diplomatic means to prevent the quick filling of the dam and has even threatened to use military force against Ethiopia, saw its efforts fall flat and ignored by Addis Ababa.