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.
Operation Enduring Freedom – Horn of Africa Joint Task Force – Horn of Africa (CJTF-HOA) is the primary (but not sole) military component assigned to accomplish the objectives of the mission. The naval component is the multinational Combined Task Force 150 (CTF-150) which operates under the direction of the United States Fifth Fleet. Both of these organizations have been historically part of United States Central Command. In February 2007, United States President George W. Bush announced the establishment of the United States Africa Command which took over all of the area of operations of CJTF-HOA in October 2008. CJTF-HOA consists of about 2,000 servicemen and women from