Published online by Cambridge University Press: 13 August 2013
From its inception, ASEAN has been shaped by the evolving structure of the international system and the activities of more powerful external actors. This is still the case. What is different now is that the nature of the region of which ASEAN is a part has changed in significant ways. Indeed, the entire structure of the international system has undergone a number of profoundly important changes which have forced ASEAN to adjust and recalibrate its own policies. This paper explores this adjustment process and maps the most important forces and actors that are compelling change. By placing the ASEAN experience in a comparative conceptual framework, it becomes possible to identify the key drivers of change and to speculate about their future impact on an organisation that has proved remarkably resilient thus far. The nature of contemporary regional developments and the continuing evolution of the wider international system mean that ASEAN is currently facing major new challenges and questions about its relevance in an era when other regional organisations are emerging to challenge its authority and role.