One of the burgeoning areas of political study over the past ten years has concentrated on the role of non-state actors in world politics. In the wake of the Soviet collapse and the end of the Cold War rivalry, some social scientists began to construct paradigms and theories centered on identity and to concentrate their research on ethnodemographic challenges posed by migration and porous borders in the post-Soviet states, including how various groups facilitated secessionist movements and insurgencies, undermining regional stability and efforts at democratization in the process.