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 of Galkayo, a Somali army unit conducting counterterrorism operations nearby, when the Somali soldiers came under fire from al-Shabab militants. The Somali soldiers engaged them, then broke contact and rejoined with their nearby American advisers and soon afterwards the militants "began to maneuver in an offensive manner" so the U.S. conducted a self-defense airstrike, killing 4 militants. 26 U.S. servicemen have been killed in non-hostile incidents in Djibouti since the start of operations in the Horn of Africa. Three U.S. soldiers were killed in accidents in Kenya. Two U.S. soldiers were killed in a vehicle accident in Ethiopia. Two U.S.