BurundiBurundi, officially the Republic of Burundi, is a landlocked country in the African Great Lakes region of East Africa.Bujumburaformerly Usumbura, is the capital, largest city, and main port of Burundi. It ships most of the country's chief export, coffee, as well as cotton and tin ore. It is on the north-eastern shore of Lake Tanganyika, the second deepest lake in the world after Lake Baikal.Nyanza Lacis a city in southern Burundi, in Makamba Province.Lake Tanganyikais an African Great Lake. It is estimated to be the second largest freshwater lake in the world by volume, and the second deepest, in both cases, after only Lake Baikal in Siberia; it is also the world's longest freshwater lake.Lake Rweruis a lake close to the northernmost point of Burundi in central Africa. The northern shore of the lake forms part of Burundi's border with Rwanda. It is famous as the most distant startpoint of the Nile River.The Kagera River,which is considered by many as the start point of the Nile, rises at the northern part of the lake, located in Rwanda.