Somalia, officially the Federal Republic of Somalia, is a country in the Horn of Africa. It is bordered by Ethiopia to the west, Djibouti to the Northwest, the Gulf of Aden to the north, the Indian Ocean to the east, and Kenya to the southwest. Somalia has the longest coastline on Africa's mainland. Its terrain consists mainly of plateaus, plains, and highlands. Hot conditions prevail year-round, with periodic monsoon winds and irregular rainfall.Somalia has an estimated population of around 15 million and has been described as Africa's most culturally homogeneous country. Around 85% of its residents are ethnic Somalis, who have historically inhabited the country's north. Ethnic minorities are largely concentrated in the south. The official languages of Somalia are Somali and Arabic. Most people in the country are Muslims, the majority of them Sunni.In antiquity, Somalia was an important commercial center. It is among the most probable locations of the fabled ancient Land of Punt. During the Middle Ages, several powerful Somali empires dominated the regional trade, including the Ajuran Sultanate, the Adal Sultanate, and the Sultanate of the Geledi.
In the late 19th century, the Somali Sultanates were colonized by Italy, Britain and Ethiopia. European colonists merged tribal territories into two colonies, but in Somaliland, Sayid Mohamed's Dervish movement managed to frustrate the Abyssinians, Italians and British during expeditions against Somaliland four times, forcing them to retreat to the coast, before finally being defeated in the 1920 Somaliland Campaign. Italy acquired full control of the northeastern, central, and southern parts of the area after successfully waging the Campaign of the Sultanates against the ruling Majeerteen Sultanate and Sultanate of Hobyo. In 1960, the two territories united to form the independent Somali Republic under a civilian government.The Supreme Revolutionary Council seized power in 1969 and established the Somali Democratic Republic, which collapsed 22 years later, in 1991, with the onset of the Somali Civil War. During this period most regions returned to customary and religious law. In the early 2000s, a number of interim federal administrations were created. The Transitional National Government (TNG) was established in 2000, followed by the formation of the Transitional Federal Government (TFG) in 2004, which reestablished the Somali Armed Forces. In 2006, with a US backed Ethiopian intervention, the TFG assumed control of most of the nation's southern conflict zones from the newly formed Islamic Courts Union (ICU). The ICU subsequently splintered into more radical groups, such as Al-Shabaab, which battled the TFG and its AMISOM allies for control of the region.By mid-2012, the insurgents had lost most of the territory they had seized, and a search for more permanent democratic institutions began. A new provisional constitution was passed in August 2012, reforming Somalia as a federation. The same month, the Federal Government of Somalia was formed and a period of reconstruction began in Mogadishu. Somalia has maintained an informal economy mainly based on livestock, remittances from Somalis working abroad, and telecommunications. It is a member of the United Nations, the Arab League, African Union, Non-Aligned Movement, and the Organisation of Islamic Cooperation.