7 International Conflict and Peace
Understand why armed conflicts begin, how they escalate and end, and how diplomacy, international responses, and inclusive peace processes can support durable peace.
Understanding
is organized political violence involving states or armed groups. An is fought between states, while a occurs within a state, often between a government and one or more organized challengers. Conflicts can become internationalized when outside states provide troops, weapons, funding, or other support.
Conflict is broader than war. Groups may have incompatible goals but pursue them through diplomacy, protest, or negotiation rather than violence.
Why wars begin
War is costly: even a victorious side may lose lives, resources, and future opportunities. This creates a central puzzle: if both sides could agree to a settlement they preferred over fighting, why does war occur? Bargaining explanations point to obstacles that can prevent such a settlement.
With , leaders may not know an opponent’s military strength, resolve, or willingness to compromise. They may also exaggerate these qualities to gain better terms. Misjudgment or failed signaling can then lead to fighting.
A arises when a side cannot credibly promise that it will honor a deal later. For example, if one state expects a rival to grow much stronger, it may fear that a settlement favorable today will leave it vulnerable tomorrow.
Some stakes, such as territory, political authority, or sacred sites, may be treated as impossible to divide. Yet the obstacle may be political rather than strictly material: domestic pressure can make leaders oppose compromise, and distrust can make a proposed division unacceptable.
Security and other risk factors
A can develop when one government takes steps to protect itself, such as expanding its armed forces, but other governments see those steps as threatening and respond with their own arms buildup.
Domestic political incentives, weak institutions, exclusion from power or resources, and the capacity to organize armed groups can also contribute to conflict. These conditions are risk factors, not automatic causes. Poverty or ethnic diversity alone does not explain why a particular war starts. Research on highlights that conditions making insurgency feasible can matter across conflicts with different political aims.
How conflicts develop and end
Conflicts often change as they unfold. A local dispute may widen when governments repress opponents, armed groups recruit members, or outside powers intervene. Retaliation, displacement, and harm to civilians can deepen fear and grievances, making compromise harder.
Armed groups may fragment, and their leaders may lose control over fighters. As a result, a deal reached by negotiators may fail to bind every faction.
Wars may end through a negotiated agreement, a , military victory, or a decline in violence. These outcomes are not equivalent: a pauses or limits fighting but does not necessarily settle the political dispute. A addresses some underlying issues and may establish a framework for political change, security arrangements, or reconstruction.
Violence can resume after an agreement if parties fear that disarmament will leave them exposed, excluded groups reject the settlement, or promised reforms are not carried out.
International responses and the UN Charter
Outside actors can respond through diplomacy, , aid, sanctions, , or, in some circumstances, military force. Intervention may protect civilians, reduce incentives to cheat on an agreement, or bring parties to negotiations. It can also escalate fighting, strengthen one side, create dependency, or weaken a settlement’s legitimacy if local people see it as imposed.
The UN Charter requires states to settle disputes peacefully and generally prohibits the threat or use of force against another state. It recognizes self-defense after an armed attack. The Security Council can determine whether there is a threat to peace and decide on measures, including sanctions and, under specified conditions, military action, to maintain or restore international peace and security.
and its limits
differs from peace enforcement. UN operations generally rely on consent of the main parties and impartiality, and use force only in self-defense or defense of the mandate.
Tasks may include monitoring ceasefires, protecting civilians, supporting political processes, and assisting with disarmament and reintegration. Peacekeepers can support a political settlement, but they cannot substitute for one.
Peace processes and
A peace process may begin with informal contacts, continue through a and negotiations, and move into an agreement and its implementation. Mediators help parties communicate and explore options; they do not decide the settlement for them.
Effective requires preparation, consent, impartiality, inclusion, coordination, and attention to local ownership. Including affected communities and groups beyond the principal armed leaders can reveal concerns that might otherwise be overlooked and strengthen the legitimacy of an agreement.
Building and sustaining peace
A durable agreement typically connects political commitments with practical steps. These may include monitoring the ; security guarantees; disarmament, demobilization, and reintegration of combatants; power-sharing or political reform where appropriate; and mechanisms for resolving disputes.
Implementation matters as much as signing. If combatants are asked to disarm before credible security guarantees are in place, they may fear that complying will expose them to attack. Careful sequencing, monitoring, and trusted channels for addressing violations can reduce this risk.
Conflict resolution can also take place below the national level through community dialogue, local ceasefires, restorative processes, or reforms addressing exclusion and unequal access to justice, security, and resources. These approaches are most effective when they complement, rather than replace, credible protection from violence and political efforts to resolve the larger dispute.
Prevention is often less costly than responding after violence escalates. Inclusive dialogue and institutional reforms can address grievances before they become organized .