Sudanese refugees who crossed into neighboring Chad receive aid at a distribution center on April 30. GUEIPEUR DENIS SASSOU/AFP via Getty ImagesWhen Sudan won independence on New Year's Day in 1956, two features stood out in the new nation: it was the largest country in Africa, and it was already embroiled in civil war that had erupted several months earlier. Page says it's always Sudan's civilians who bear the brunt of these conflicts