Patricia A. Weitsman
Military alliances predate even the state system as a form of international cooperation, and they take on many forms. The motivations of states seeking to join, the commitment levels formalized in the alliance agreement, and degrees of institutionalization all take different forms in the literature, but these scholarly perspectives can be boiled down to a few approaches: the realist, the rationalist and formalist, the liberal or institutionalist, and finally, the constructivist arguments on alliance identities. Moreover, a common thread among the literature on military alliances is an understanding that alliances provide a wide range of services to their members, and contain more than one motivation for forming and maintaining the alliances. Given that the motivations for forming alliances are varied, especially during different threat environments, it is important to ask what the consequences are. In this vein, scholars consider two primary issues: if these alliances can fulfill their intended missions, and if there are unintended consequences which may arise and lead to undesirable results. A related issue to the study of what motivates alliances is in how well they perform in terms of cohesion. Cohesion is, roughly speaking, the capacity of an alliance to effectively carry out its goals. Finally, there are the coalitions—ad hoc multinational understandings that are forged to undertake a specific mission, and dissolve once that mission is complete. They are not wholly analytically distinct from wartime alliances, although the latter may have a greater degree of institutionalization and may predate a specific wartime operation.
Karen Ruth Adams
The scientific study of war is a pressing concern for international politics. Given the destructive nature of war, ordinary citizens and policy makers alike are eager to anticipate if not outright avoid outbreaks of violence. Understanding the causes of war can be a complex process. Scholars of international relations must first define war, and then establish a universe of actors or conflicts in which both war and peace are possible. Next, they must collect data on the incidence of war in the entire universe of cases over a particular period of time, a random sample of relevant cases, a number of representative cases, or a set of cases relevant to independent variables in the theories they are testing. Finally, scholars must use this data to construct quantitative and qualitative tests of hypotheses about why actors fight instead of resolving their differences in other ways and, in particular, why actors initiate wars by launching the first attack. Instead of taking the inductive approach of inventorying the causes of particular wars and then attempting to find general rules, it is necessary for scholars to approach the problem deductively, developing theories about the environment in which states operate, deriving hypotheses about the incidence of war and attack, and using quantitative and qualitative methods to test these hypotheses.
Mackubin Thomas Owens
Civil–military relations is an interdisciplinary area of research, reflecting the work of political scientists, military, sociologists, and historians. History and culture, the constitution of the state and the statutes and practices arising therefrom, changes in the international security environment, technology, the character of conflict, and the changing concept of “soldier-hood” all influence the civil–military relations of a state. There are many possible patterns of civil–military relations that provide different answers to the questions of who controls the military and how, the degree of military influence appropriate for a given society, the appropriate role of the military in a given polity, who serves, and the effectiveness of the military instrument that a given civil–military relations produces. Moreover, there is no “general” or “unified field” theory that successfully explains all of these patterns. For a variety of reasons, Samuel Huntington's institutional theory remains the dominant paradigm for examining civil–military relations. When it comes to the question of civilian control of the military, Peter Feaver’s agency theory corrects some of the flaws in Huntington’s theory. Morris Janowitz and the military sociologists also provide useful insights, especially regarding the question of who serves and related issues. In the case of concordance theory, critics argue that the definition of military intervention sets the bar too low to be meaningful. Ultimately, the patterns of civil–military relations affect national security because of their impact on strategic assessment.
Stathis N. Kalyvas and Paul D. Kenny
A civil war, also known as intrastate war, is a war between organized groups within the same state or country. It is a high-intensity conflict that often involves regular armed forces. One of the reasons for the lack of consensus in the study of civil war is disagreement over what exactly civil war means. Theoretically, civil war overlaps with other categories of armed conflict, particularly revolution, political violence, ethnic conflict, and terrorism. Civil wars since the end of World War II have lasted for over four years on average, a considerable rise from the one-and-a-half-year average of the 1900–1944 period. While the rate of emergence of new civil wars has been relatively steady since the mid-19th century, the increasing length of those wars has resulted in increasing numbers of wars ongoing at any one time. Since 1945, civil wars have resulted in the deaths of over 25 million people, as well as the forced displacement of millions more, along with economic collapse. According to scholars of civil war research, the causes of civil war include economic motivations or greed, and political or social grievances. Greed-based explanations focus on individuals’ desire to maximize their profits, while grievance-based explanations center on conflict as a response to socioeconomic or political injustice. A third concept, opportunity-based explanations, talks about factors that make it easier to engage in violent mobilization.
Idean Salehyan and Clayton L. Thyne
Civil war is an armed conflict between the state and another organized domestic party over a contested political incompatibility, which results in a number of casualties exceeding a certain threshold for both parties. Attempts to operationalize these criteria have produced many data sets, which conceptualize civil war as distinct from one-sided violence, organized crime, and communal fighting. Civil wars are devastating for states experiencing them, their neighbors, and the entire global community. Combatant and civilian deaths, rape, massive refugee flight, negative impacts on economy and infrastructure, spread of infectious diseases, global spread of illegal narcotics, and the promotion of terrorism are all consequences of civil wars. Theories explaining why civil wars occur focus on objectives of the rebels, ability of rebels to successfully challenge the government, influence of external actors on interactions between the government and the opposition, external financing of potential rebel groups, and impact of a state’s neighbors on the likelihood of civil conflict or how neighboring conflicts and refugee communities serve as breeding grounds for cross-border rebel movements. Conflicts persist until neither side believes that it can achieve unilateral victory and continued fighting is costly. Governments are more likely to win early when they have large armies, but time to government victory increases when they are faced with secessionist rebels and when external parties are involved. Meanwhile, external mediation diminishes informational and credible commitment problems during bargaining and reduces conflict duration. Promising directions for future research on civil war include geographic disaggregation, survey research, and computational/agent-based modeling.
Paul K. Huth and Alyssa K. Prorok
War is merely an outward expression of an inward state, an enlargement of a daily action. It is bloodier, more spectacular, more destructive, but it is the collective result of humans’ individual activities. The law of war is a legal jargon that refers to the aspect of public international law concerning acceptable justifications to engage in war (jus ad bellum) and the limits to acceptable wartime conduct (jus in bello). Among other issues, modern laws of war address declarations of war, acceptance of surrender and the treatment of prisoners of war; military necessity, along with distinction and proportionality; and the prohibition of certain weapons that may cause unnecessary suffering. It has often been commented that creating laws for something as inherently lawless as war seems like a lesson in absurdity. However, based on the adherence to what amounted to customary international law by warring parties through the ages, it was felt that codifying laws of war would be beneficial. But while most analytical attention is devoted to explaining why wars and militarized disputes occur, there is also some need to focus on what effects or consequences wars and disputes generate. Wars and, to a lesser extent, disputes have had exceptionally strong influences on the way the world works, and previous wars and disputes are likely to strongly influence the subsequent probability of more wars and disputes.
Conflict analysis and resolution (CAR) is defined by a set of ideas about avoiding, minimizing, and stopping violence that often is mutually destructive. CAR relates to all domains of conflicts, whether within or between families, organizations, communities, or countries. The CAR field emerged between 1946 and 1969, as numerous wars and crises erupted, associated with the Cold War and the national liberation struggles of the decolonization process. Many doctrines, theories, and research appeared to explain and influence those conflicts. New governmental and nongovernmental actions were also undertaken to prevent future wars by building transnational institutions and fostering reconciliation between former enemies. The rapid expansion and institutionalization of CAR began in the early 1970s, when many American pioneers in the field became discouraged by their failure to accomplish more during the 1950s and 1960s. The end of the Cold War in 1989 and collapse of the Soviet Union in 1991 profoundly changed the world environment. Several developments contributed to limiting destructive international and domestic conflicts. These include the increasing economic integration of the world and the intensification of global communications; the growing adherence to norms protecting human rights; increasing number of democratic countries; and growing engagement of women in governance. Core CAR concepts include conflict analysis, conflict fluidity and subjectivity, and multiplicity of actors.
Louis Kriesberg and Joyce Neu
Core concepts of the interdisciplinary social science field of conflict analysis and resolution (CAR) are discussed. Work in the field is based on numerous generally accepted ideas about the nature of conflict and constructive approaches to conflict. These ideas include ways of waging conflicts constructively, tracing the interconnectedness of conflicts, and assessing the multiplicity of actors. Other important core concepts relate to stages of conflicts: emergence, escalation, de-escalation and settlement, and sustaining peace. Finally, current and future issues regarding CAR conceptualizations and their applications are examined.
Even though most conflicts in everyday life manifest themselves as cursory bagatelles, there are conflicts that end up in situations of organized, collective violence (e.g., armed conflict). To understand how trivial contradictions can become meaningful conflicts in a broader societal context, it is crucial to examine the process of conflict escalation. Conflict escalation can be understood as an intensification of a conflict with regard to the observed extent and the means used. An escalating conflict represents a developing social system in its own right, having the legitimization of violence as a key feature. Here, a broader social science perspective on the concept of conflict escalation is offered, outlining its intellectual history, explaining its major perspectives and current emphases, and exploring newer avenues in approaching social conflict.
Sara McLaughlin Mitchell and Patrick M. Regan
The issue of armed conflict management was first mentioned in the inaugural issue of the Journal of Conflict Resolution in 1957, when Quincy Wright wrote that the resolution of international conflict can be facilitated by national government efforts “to prevent tensions for arising and aggravating disputes […] among nations. Such resolution can also proceed through the application of appropriate methods of negotiation, inquiry, mediation, conciliation, arbitration, judicial settlement […] and the coordination of measures to prevent aggression.” However, there was remarkably little emphasis on studies of negotiation, mediation, or interstate bargaining before the mid-1970s. A more concerted focus on managing armed conflict began in the mid-1970s, and the 1990s and 2000s saw an explosion in the number of published quantitative studies on conflict management, driven in part by the significant growth in data collection projects on interstate conflict management. Over the past half-century, quantitative studies have identified the factors that promote the use and success of interstate conflict management. It should be noted that a lot of the usual suspect variables in the conflict literature, such as power parity, democracy, rivalry, and contiguity, appear in conflict management analyses as well. Yet the dialogue between these two literatures is often limited. On the other hand, conflict management courses typically organize themselves around the dependent variable, examining different forms of conflict management techniques (good offices, mediation, conciliation, arbitration, adjudication, etc.). Progress will be made on both fronts when we start thinking about these processes in a unified framework.