South Sudan (/suːˈdɑːn, -ˈdæn/ (About this soundlisten)), officially known as the Republic of South Sudan, is a landlocked country in East-Central Africa. The country gained its independence from the Republic of the Sudan in 2011, making it the newest country with widespread recognition. Its capital and largest city is Juba.
South Sudan is bordered by Sudan to the north, Ethiopia to the east, Kenya to the southeast, Uganda to the south, the Democratic Republic of the Congo to the southwest and the Central African Republic to the west. It includes the vast swamp region of the Sudd, formed by the White Nile and known locally as the Bahr al Jabal, meaning "Mountain Sea". Sudan was occupied by Egypt under the Muhammad Ali dynasty and was governed as an Anglo-Egyptian condominium until Sudanese independence in 1956. Following the First Sudanese Civil War, the Southern Sudan Autonomous Region was formed in 1972 and lasted until 1983. A second Sudanese civil war soon broke out, ending in 2005 with the Comprehensive Peace Agreement. Later that year, southern autonomy was restored when an Autonomous Government of Southern Sudan was formed. South Sudan became an independent state on 9 July 2011, following 98.83% support for independence in a January 2011 referendum.
South Sudan has a population of 12 million, mostly of the Nilotic peoples. Christianity is the majority religion. In September 2017 the UN Special Representative for Children and Armed Conflict said that half of South Sudan's inhabitants are under 18 years old. It is a member of the United Nations, the African Union, the East African Community and the Intergovernmental Authority on Development. In July 2012, South Sudan signed the Geneva Conventions. South Sudan has suffered ethnic violence and has been in a civil war since 2013. As of 2018, South Sudan ranks third lowest in the latest UN World Happiness Report, and has the highest score on the American Fund for Peace's Fragile States Index (formerly the Failed States Index).