Bugis migrants from South Sulawesi, Indonesia, have been at the center of several recent regional conflicts. In order to explain their role in these conflicts, historic and ethnographic accounts of Bugis migration and settlement, as well as interviews with recently repatriated migrants, are presented, and current theories of frontier/state relations are brought to bear. This article suggests that Bugis migrants have often acted as agents of assimilation in concert with existing elites, and that this pattern has become anachronistic in post-Suharto Indonesia. (Indonesia, Bugis, migration, ethnic groups, conflict) ********** Observers of Indonesian society have frequently commented on its seemingly extraordinary ability to hold itself together in spite of its geographic fragmentation and sociocultural diversity. The recent eruption of violent ethnic and religious conflicts has shown us how very real the problem of national integration is in Indonesia. With the fall of President Suharto in 1998 and the granting of independence to East Timor in 1999, other long-suppressed separatist movements are reemerging. Within the framework of assimilation, this article addresses questions concerning the role of migration and the settlement of peoples outside their homelands as a factor in the economic and political integration of the region and the Indonesian state. (1) This essay is informed by my research on Bugis migration, by the ethnic conflicts in Indonesia, especially between Bugis migrants and local populations in East Timor, West Timor, Ambon, Central Sulawesi, and West Papua, and by Kopytoff's (1987) and Scott's (1998a, 1998b) models for the historical understanding of frontiers and their relationship to metropoles. It relies upon the historical and ethnographic accounts of the Bugis, both in their homeland of South Sulawesi and in the diaspora, as well as press accounts of recent ethnic conflicts between Bugis and indigenous ethnic groups in East Timor, West Timor, Ambon, and West Papua. As such, it is meant to help clarify the social and cultural forces that give rise to these conflicts and to provide the basis for further research on a problem critical to the future of the Indonesian nation and the safety and security of its ethnically diverse population. One of the region's largest and most widely dispersed ethnic groups, the Bugis, whose homeland is South Sulawesi, has helped shape the processes of regional and national integration and disintegration, past and present. Over several centuries, Bugis migrants and settlers have developed a reputation for their ability to insinuate themselves into and eventually dominate local economies and social orders. In particular, the history of Bugis migration is best understood through a frontier model in which, as Scott (1999) has suggested, Southeast Asian states have encouraged assimilation as a means to control populations. Ironically, as I will show, the sensibility of migrants has not been one of mere assimilation into existing social orders. Rather, Bugis migrants more often reconstruct their own social orders based upon their own shared beliefs and practices in a manner described by Kopytoff (1987). Specifically, from the early colonial period through the end of Suharto's New Order, Bugis migrants have extensively allied with elites and acted as agents of assimilation, imposing upon local peoples ways they promoted as economically and politically progressive and socially and culturally correct. Unfortunately, their alliance with the New Order was a major factor in the current wave of ethnic and religious conflict, causing thousands of migrants and a large number of Bugis settlers to flee the violence. FRONTIERS AND THE NEW SOCIAL ORDERS Kopytoff's (1987) introduction to The African Frontier presents a brilliantly cogent model for the historical understanding of frontiers and their relationship to metropoles in sub-Saharan Africa. …