South Sudan
Capital of: Juba
Juba is the correct answer: it’s the capital and largest city of South Sudan, serving as the political and economic hub since the country gained independence on 9 July 2011. Located on the White Nile, Juba was also the administrative center of the Southern Sudan region before independence. The other options—Malakal, Wau, and Bentiu—are important regional cities but not the national capital.
Interesting note: South Sudan has discussed moving the capital to a planned city at Ramciel, but Juba remains the capital. Memory tip: think “Ju” in Juba and “July 2011,” the month and year South Sudan became a nation—Juba for July, the capital of the world’s newest country.