By October of 1964, an issue called the “Southern Problem” had formed in Sudan. This Southern Problem was essentially a dispute between the Arabized Muslim North and Christian South of Sudan. The northern “Sudanization” of southern administrative positions and ethnic, cultural, and religious differences began to manifest in discrimination against southern Sudanese, planting the seeds for this problem.
The Sudan has a history of popular uprisings to depose oppressive or disagreeable governments, prior to the 1985 insurrection. In 1964 the October Revolution consisted of a widespread general strike led by the National Front for Professionals. The organization joined forces with political leaders to create the United National Front (UNF) and, along with dissident military leaders, this coalition succeeded in dissolving the Abbud regime and transitioning to civilian rule.