The paper examined the activities of the African Union (AU) and the United Nations aimed at resolving conflict and maintaining peace and security especially in Darfur, the secondary method of data collection and analysis was adopted. The study made use of conflict theory as the framework of analysis. The findings of the research revealed: that the conflict in Darfur was caused by the colonial heritage, ethnic rivalry, religious intolerance and ecological challenges; that AU and UN have contributed significantly in the peace process in Darfur in the areas of protection of lives and properties, provision of humanitarian assistance, provision of enabling environment for negotiation, among others. Nonetheless, these were not without challenges ranging from logistics, ecological, corruption. The following recommendations were arrived at: proper training for the AU / UN officials on peace keeping; cooperation of all the parties, especially the Sudanese government and AU /UN member states towards conflict resolution; and demonstration of political will by the international community.
Keywords: Achievements, African Union, Challenges, Darfur Conflict, Intervention, Lessons for the Future, United Nations
