Burundi (, ), officially the Republic of Burundi (Kirundi: Republika y'Uburundi, [u.βu.ɾǔː.ndi]; French: République du Burundi, [buʁundi] or [byʁyndi]), is a landlocked country in the Great Rift Valley where the African Great Lakes region and East Africa converge. It is bordered by Rwanda to the north, Tanzania to the east and southeast, and the Democratic Republic of the Congo to the west; Lake Tanganyika lies along its southwestern border. The capital is Bujumbura.
The Twa, Hutu and Tutsi peoples have lived in Burundi for at least 500 years. For more than 200 of those years, Burundi was an independent kingdom, until the beginning of the 20th century, when Germany colonised the region. After the First World War and Germany's defeat, it ceded the territory to Belgium. Both Germans and Belgians ruled Burundi and Rwanda as a European colony known as Ruanda-Urundi. Despite common misconceptions, Burundi and Rwanda had never been under common rule until the time of European colonisation.
Burundi gained independence in 1962 and initially had a monarchy, but a series of assassinations, coups and a general climate of regional instability culminated in the establishment of a republic and one-party state in 1966. Bouts of ethnic cleansing and ultimately two civil wars and genocides during the 1970s and again in the 1990s left the economy undeveloped and the population as one of the world's poorest.
The presidents of Rwanda and Burundi, both Hutus, died together when their aeroplane was shot down in April 1994. 2015 witnessed large-scale political strife as President Pierre Nkurunziza opted to run for a third term in office, a coup attempt failed and the country's parliamentary and presidential elections were broadly criticised by members of the international community.
The sovereign state of Burundi's political system is that of a presidential representative democratic republic based upon a multi-party state. The President of Burundi is the head of state and head of government. There are currently 21 registered parties in Burundi. On 13 March 1992, Tutsi coup leader Pierre Buyoya established a constitution, which provided for a multi-party political process and reflected multi-party competition. Six years later, on 6 June 1998, the constitution was changed, broadening National Assembly's seats and making provisions for two vice-presidents. Because of the Arusha Accord, Burundi enacted a transitional government in 2000. In October 2016, Burundi informed the UN of its intention to withdraw from the International Criminal Court.