Horn of Africa covered the Simien and Bale Mountains but melted at the beginning of the Holocene. The mountains descend in a huge escarpment to the Red Sea and more steadily to the Indian Ocean. Socotra is a small island in the Indian Ocean off the coast of Somalia. Its size is 3,600 km (1,390 sq mi) and it is a territory of Yemen. The lowlands of the Horn are generally arid in spite of their proximity to the equator. This is because the winds of the tropical monsoons that give seasonal rains to the Sahel and the Sudan blow from the west.
Horn of Africa Suez canal in 1869, when European powers scrambled for territory in Africa and tried to establish coaling stations for their ships, Italy invaded and occupied Eritrea. On January 1, 1890, Eritrea officially became a colony of Italy. In 1896 further Italian incursion into the horn was decisively halted by Ethiopian forces. By 1936 however, Eritrea became a province of Italian East Africa (Africa Orientale Italiana), along with Ethiopia and Italian Somaliland. By 1941, Eritrea had about 760,000 inhabitants, including 70,000 Italians. The Commonwealth armed forces, along with the Ethiopian patriotic resistance, expelled those of Italy in 1941, and took over