Conflict resolution is conceptualized as the methods and processes involved in facilitating the peaceful ending of conflict and retribution. Committed group members attempt to resolve group conflicts by actively communicating information about their conflicting motives or ideologies to the rest of group (e.g., intentions; reasons for holding certain beliefs) and by engaging in collective negotiation. Dimensions of resolution typically parallel the dimensions of conflict in the way the conflict is processed. Cognitive resolution is the way disputants understand and view the conflict, with beliefs, perspectives, understandings and attitudes. Emotional resolution is in the way disputants feel about a conflict, the emotional energy. Behavioral resolution is reflective of how the disputants act, their behavior. Ultimately a wide range of methods and procedures for addressing conflict exist, including negotiation, mediation, mediation-arbitration, diplomacy, and creative peacebuilding.

Wallensteen defines conflict resolution (for peace and conflict studies) as:

[S]ocial situation where the armed conflicting parties in a (voluntarily) agreement resolve to live peacefully with – and/or dissolve – their basic incompatibilities and henceforth cease to use arms against one another.

The "conflicting parties" concerned in this definition are formally or informally organized groups engaged in intrastate or interstate conflict. 'Basic incompatibility' refers to a severe disagreement between at least two sides where their demands cannot be met by the same resources at the same time.

According to conflict database Uppsala Conflict Data Program's definition, war may occur between parties who contest an incompatibility. The nature of an incompatibility can be territorial or governmental, but a warring party must be a "government of a state or any opposition organization or alliance of organizations that uses armed force to promote its position in the incompatibility in an intrastate or an interstate armed conflict". Wars can conclude with a peace agreement, which is a "formal agreement... which addresses the disputed incompatibility, either by settling all or part of it, or by clearly outlining a process for how [...] to regulate the incompatibility."

A ceasefire is another form of agreement made by warring parties; unlike a peace agreement, it only "regulates the conflict behaviour of warring parties", and does not resolve the issue that brought the parties to war in the first place.

Peacekeeping measures may be deployed to avoid violence in solving such incompatibilities. Beginning in the last century, political theorists have been developing the theory of a global peace system that relies upon broad social and political measures to avoid war in the interest of achieving world peace. The Blue Peace approach developed by Strategic Foresight Group facilitates cooperation between countries over shared water resources, thus reducing the risk of war and enabling sustainable development.

The escalating costs of conflict have increased use of third parties who may serve as a conflict specialists to resolve conflicts. In fact, relief and development organizations have added peace-building specialists to their teams. Many major international non-governmental organizations have seen a growing need to hire practitioners trained in conflict analysis and resolution. Furthermore, this expansion has resulted in the need for conflict resolution practitioners to work in a variety of settings such as in businesses, court systems, government agencies, nonprofit organizations, and educational institutions throughout the world. Democracy has a positive influence on conflict resolution.