The fall of authoritarian regimes in Tunisia, Egypt and Libya has changed political dynamics on the African continent. One immediate concern has been the implications of these developments for the African Union (AU) and its member states. Would overall political dynamics in the AU be changed? Would the most powerful member states use the altered circumstances to enhance their influence on AU policies andframeworks? What would the impact be for the AU's overall authority? In this Discussion Paper series, three edited papers are presented that tackle AU political and institutional dynamics in light of the Arab revolts. A particular puzzle addressed is the current postures of South Africa, Ethiopia and Algeria within the AU. A separate analysis of Nigeria's role was published earlier in the NAI-FOI Lecture Series on African Security. The work in this discussion series reflects the longstanding collaboration between the Swedish Defence Research Agency's Project Studies in African Security and the Nordic Africa Institute to build Africa-related research capacity on peace and security.