The long-established authoritarian regimes in Libya, Yemen, and Egypt were very different in form. It is not surprising, therefore, that the way in which those regimes came to an end in 2011 varied significantly across cases. Nor is it surprising that the dynamics of transition in those cases have also varied since the Arab Spring. That said, the studies in this symposium have shown that, despite their many differences, processes of regime transition in Libya, Yemen, and Egypt have also shared two significant traits. First, disagreements among stakeholders over basic questions of institutional design have generated intense uncertainty about the nature of posttransition regimes. Second, political and military actors have occasionally turned to violence, in an effort to “resolve” their disagreements through force. In our symposium, we have tried to clarify the relationship between these shared traits of uncertainty and violence. To do this, we have disaggregated the concept of transitional uncertainty, considered the degree to which different forms of uncertainty have already fomented insecurity in post-Arab Spring states, and offered assessments of whether uncertainty may (continue to) prove destabilizing in those states going forward.