sentences:  During the First World War (1914–1918), Hassan received symbolic support for a time, from the Emperor Iyasu V of Ethiopia, he was also sent a letter of support by the Ottomans though it was intercepted by Italian agents in Aden and may never have reached him.The conflict ended when the British aerially bombed the Dervish capital of Taleh in February 1920.In the colonial period, the Somali-inhabited territories in the Horn of Africa were collectively referred to as "Somaliland".