Angola holds approximately 35 million people distributed across a territory of 1,246,700 square kilometers between the Atlantic Ocean and the interior plateau. The Portuguese language unifies administration and education while more than forty Bantu languages persist in daily use across regions. Umbundu speakers concentrate in the central highlands around Huambo and comprise the largest ethnolinguistic group. Kimbundu speakers dominate the capital corridor from Luanda inland through Malanje. Kikongo persists in the north particularly around Mbanza-Kongo and into Cabinda Province, the oil-rich exclave separated from the rest of Angola by the Democratic Republic of Congo and the Congo River mouth. Ovimbundu, Bakongo, and Ambundu represent the three principal ethnic categories though internal diversity renders these terms approximate. Chokwe populations occupy eastern provinces including Lunda Sul where Saurimo serves as the diamond trade center. The southern provinces toward the Namib Desert hold Ovambo, Herero, and Nyaneka-Humbe populations with stronger cultural links to Namibia than to Luanda.
The Kingdom of Kongo controlled the northern region from the fourteenth century with its capital at Mbanza-Kongo, a settlement the Portuguese encountered in 1483 when navigator Diogo Cão reached the Congo River mouth. The Kongo monarchy adopted Catholicism in 1491 under King Nzinga a Nkuwu, creating a hybrid political system that lasted into the seventeenth century. South of the Kongo sphere the Kingdom of Ndongo resisted Portuguese expansion from the coast through a series of wars beginning in the sixteenth century. Queen Nzinga Mbande ruled Ndongo and later Matamba from 1624 until her death in 1663, leading military resistance and diplomatic maneuvering against Portuguese slave raiders. She allied alternately with the Dutch and Portuguese, converted to Christianity multiple times for strategic purposes, and maintained an independent kingdom through four decades of continuous conflict. The Portuguese established Luanda in 1575 as a slave trade port but did not control the interior plateau until the late nineteenth century.
The Berlin Conference of 1884-85 assigned Angola to Portugal as other European powers formalized the Scramble for Africa. Portuguese forces conducted military campaigns into the interior through the 1920s to suppress resistance and establish administrative control beyond the coastal strip. The Benguela Railway reached the Katanga mines in the Belgian Congo by 1931, creating the first economic integration of the territory. Portugal maintained Angola as an overseas province rather than a colony in legal terminology and promoted limited European settlement particularly around Huambo, Benguela, and Lubango. By 1974 approximately 350,000 Portuguese settlers lived in Angola concentrated in cities and commercial agriculture zones. Contract labor systems extracted workers from rural areas for coffee plantations in the north and later for construction projects in Luanda.
Three liberation movements formed in the 1950s along ethnic and regional lines. Holden Roberto founded the FNLA with support from Bakongo populations and external backing from Zaire. Agostinho Neto led the MPLA drawing support from Kimbundu areas and Luanda's educated mixed-race population with ideological alignment to the Soviet Union and Cuba. Jonas Savimbi established UNITA initially among Ovimbundu in the central highlands with eventual support from South Africa and the United States. Armed conflict began in 1961 with an FNLA attack in the north and an MPLA prison break in Luanda. Portugal committed increasing military resources through the 1960s but the Carnation Revolution in Lisbon on April 25, 1974 ended metropolitan support for colonial wars.
Angola declared independence on November 11, 1975 with the MPLA controlling Luanda and recognition from the Organisation of African Unity. Cuban troops arrived in October 1975 to support the MPLA against a South African invasion advancing from Namibia in coordination with UNITA. The Angolan Civil War continued until 2002 with shifting frontlines and periodic cease-fires. The conflict killed an estimated 500,000 people and displaced millions while destroying infrastructure across the interior. UNITA controlled diamond areas in the east and maintained guerrilla operations from bases in the southeast. The MPLA government held cities and oil facilities along the coast with Cuban military support until 1991. Jonas Savimbi died in combat on February 22, 2002 in Moxico Province. UNITA signed a ceasefire on April 4, 2002 and transitioned into a political party.