For some time, scholars have noticed that ethnic groups that are geographically concentrated or possess a “regional base” tend to become embroiled in anti-state rebellion at a much higher rate than other ethnic groups. Countries with higher numbers of geographically concentrated ethnic minorities and self-determination movements tend to see more internal violence. Furthermore, if popular demands for independence exist, they may or may not reach serious political expression, and that expression may take various forms, from electoral action to protest or outright rebellion. The form of expression depends on institutional constraints and various factors that generate reasons for conflict; however, not all attempts at secession are done with violence. Many secessionist organizations have in fact refrained from violence, and some governments permit secessionists to organize, to contest elections, and even to pursue independence through the political process. Recently, scholarship has begun to move away from the determinants of popular demands for sovereignty to the dynamics of secessionist mobilization, including collective protest and rebellion. This research sees the struggle between nationalists and the state in the context of game theory, particularly deterrence models, and generally stresses concepts such as capability, information, and credibility. Secessionism overall remains a research frontier in both comparative politics and international relations.
Terrorism has been described variously as a tactic and strategy, a crime and a holy duty, as well as a justified reaction to oppression and an inexcusable abomination. Nationalist terrorism is a form of terrorism motivated by nationalism. Nationalist terrorists seek to form self-determination in some form, which may range from gaining greater autonomy to establishing a completely independent, sovereign state. Nationalist terrorism is linked to a national, ethnic, religious, or other identifying group, and the feeling among members of that group that they are oppressed or denied rights, especially rights accorded to others. But while terrorism has more often been based on revolutionary politics, there has also been an increase in terrorist activity motivated by religion. Terrorist acts done in the name of religion typically aim to enforce a system of belief, viewpoint or opinion. The validity and scope of religious terrorism is limited to an individual’s view or a group’s view or interpretation of that belief system’s teachings. There are some researchers, however, who argue that religion should be considered only one incidental factor and that such terrorism is primarily geopolitical. Meanwhile, ethnic violence refers to violence expressly motivated by ethnic hatred and ethnic conflict. The minimum requirement for ethnic tensions to result in ethnic violence on a systemic level is a heterogeneous society and the lack of a power to prevent them from fighting.