Horn of Africa periodic monsoon winds and irregular rainfall. Mean daily maximum temperatures range from , except at higher elevations along the eastern seaboard, where the effects of a cold offshore current can be felt. Somalia has only two permanent rivers, the Jubba and the Shabele, both of which begin in the Ethiopian Highlands. About 220 mammals are found in the Horn of Africa. Among threatened species of the region, there are several antelopes such as the beira, the dibatag, the silver dikdik and the Speke's gazelle. Other remarkable species include the Somali wild ass, the desert warthog, the hamadryas baboon, the Somali
Operation Enduring Freedom – Horn of Africa servicemen were killed in the Republic of Seychelles and in the Gulf of Oman, respectively. Operation Enduring Freedom – Horn of Africa Operation Enduring Freedom – Horn of Africa (OEF-HOA) is the United States military operation to combat militant Islamism and piracy in the Horn of Africa. It is one component of Operation Enduring Freedom (OEF), which includes eight African states stretching from the far northeast of the continent to the oil-rich Gulf of Guinea in the west. The other OEF mission in Africa is known as Operation Enduring Freedom – Trans Sahara (OEF-TS), which, until the creation of the