5. South Sudan-Sudan Border War
Despite South Sudan’s 2011 independence, unresolved issues like border demarcation and resource sharing have led to ongoing clashes. Sporadic violence and disputes over oil-rich regions keep the conflict alive. For instance, in February 2026, a deadly drone strike by the Sudanese Armed Forces targeted the Heglig oil field, killing dozens, including South Sudanese soldiers and tribal leaders. (apnews.com) Additionally, in March 2025, clashes erupted in Nasir, South Sudan, between the South Sudan People’s Defence Forces and the Nuer White Army, resulting in significant casualties and displacement. These incidents underscore the persistent instability along the border, affecting regional security and economic development.
