عثمان دقنة
In the Hewett Treaty, concluded in 1884, the United Kingdom recognized Bogos and Massawa as possessions of Ethiopia in return for "Ras" Alula's help evacuating the Egyptian garrisons of Amedeb, Algeden, Keren, Ghirra, and Gallabat which had been isolated by the Mahdists, and because of these successes the British once more asked for his help against the Mahdists under Osman Digna.