The Life Cycle of a Conflict: From Peace to War and Back

Conflicts are rarely sudden. What looks like an explosion of violence in the news usually has a long history behind it: years of rising tension, missed warnings, and broken trust. Political scientists describe this entire journey using a powerful idea called the conflict cycle. It maps how a society can drift from peaceful coexistence into open warfare, and then, often painfully, find its way back to peace again. Understanding this cycle is not just an academic exercise. It tells us exactly where and when to act if we want to prevent bloodshed or rebuild after it.

What the conflict cycle actually means 🔗

A conflict is not a fixed event. It is a dynamic process whose intensity rises and falls over time. Peace researcher Johan Galtung defined conflict as a constantly changing interaction of structures, attitudes, and behaviours that influence one another. Because the intensity keeps shifting, scholars argue that we cannot treat every conflict the same way. The strategy that works at one stage may be useless or even harmful at another.

The United States Institute of Peace visualises this as a “curve of conflict.” The first part of the curve shows escalation, from stable peace through growing hostility to the outbreak of violence. The middle is where violence peaks and begins to subside. The back end shows de-escalation as the conflict winds down. Along this curve we can identify clear stages where prevention, management, or resolution becomes possible.

Most scholars agree that these cycles tend to recur. A society that reaches stable peace can still slide back toward war if its underlying problems are never solved. This is why understanding the cycle matters so much for anyone studying governance, diplomacy, or social policy.

The five levels of conflict intensity 🔗

A widely used model, developed by scholars such as Swanström and Weissmann, breaks the cycle into five levels of intensity. These levels move from calm cooperation all the way up to open war, and the same five stages appear in reverse during de-escalation.

Stable peace 🔗

This is the healthiest stage of the cycle. Tension between parties is low, and there are active forms of cooperation between them. According to the framework summarised by academic sources on conflict cycles, stable peace often includes economic and environmental cooperation along with collaboration on other non-sensitive issues. Disagreements still exist, but they are settled politically without any hint of violence. Think of two states that trade freely and resolve disputes through dialogue rather than threats.

Unstable peace 🔗

Here tension has clearly increased. Even though there is no open violence, the relationship has soured to the point where peace can no longer be taken for granted. This is what scholars call a state of negative peace: violence is absent, but suspicion is high and positions are hardening. Armed forces may even be kept ready as a deterrent. The peace is real, but it is fragile.

Open conflict 🔗

At this stage the conflict has come out into the open and can be clearly observed. The parties have started taking concrete steps to deal with the dispute, even though they may be leaning toward coercive or militarised options. The disagreement is now public, organised, and visible to outsiders, but large-scale violence has not yet erupted.

Crisis 🔗

Crisis is the dangerous tipping point. War has become imminent but has not yet broken out. Tensions are at breaking point, and a single incident could trigger full-scale violence. This is the stage where rapid, drastic action is needed to pull the parties back from the edge. The window for peaceful intervention is closing fast.

War 🔗

This is the peak of the curve, marked by widespread and intense violence. The conflict has fully erupted, and the human and material costs mount quickly. As the research on conflict intensity points out, once actors cross the threshold into open, undeniable violence, the dynamics change fundamentally, and past violence becomes the strongest predictor of future violence.

The journey back: de-escalation 🔗

The conflict cycle is not a one-way street. After war peaks, the pattern reverses. A society moves from war back to crisis, then through open conflict and unstable peace, and finally, if all goes well, returns to stable peace. This de-escalation phase is just as important as the escalation phase, and it is often far harder to manage.

The challenge is that hard-won arrangements can easily unravel. As conflict scholars note, tensions can re-escalate for many reasons even after a ceasefire. Beyond Intractability describes how negotiations often become possible only when both sides reach a “hurting stalemate,” a point where neither can win and the pain of continuing the fight outweighs the cost of compromise. The skill of a peacemaker lies not only in stopping a war but in making sure it does not start again.

Matching the right strategy to the right stage 🔗

The real value of the conflict cycle is that it tells policymakers which tool to reach for at each point. Three broad approaches apply to different phases: prevention, management, and resolution. As research on conflict cycle interventions explains, these are designed for distinct stages and are not interchangeable.

Conflict prevention 🔗

Prevention measures are designed for the early phases, before a conflict becomes manifest. They are most effective during stable and unstable peace. Importantly, prevention itself comes in two forms:

Structural prevention works best during stable peace. It tackles the deep, long-term causes of conflict, such as inequality, discrimination, weak institutions, or lack of economic opportunity. In a diverse country, this might mean ensuring fair access to education, employment, and political participation across all groups so that grievances never accumulate in the first place.

Direct prevention becomes effective during unstable peace, when tension is already rising. These are more immediate steps, such as preventive diplomacy, dialogue, and early warning systems, aimed at stopping a specific, brewing dispute from escalating into open conflict.

Conflict management 🔗

Management comes into play in later phases, when a conflict is manifest but before large-scale violence has occurred. The goal of conflict management is to reduce tension and contain hostile actions so that the dispute can be handled at a political level rather than a military one. It does not necessarily solve the root cause; it limits the damage and keeps channels open.

Crisis management 🔗

When a dispute reaches the crisis point, with violence imminent or just breaking out, crisis management becomes necessary. As a peacebuilding toolbox compiled for practitioners describes, this is the urgent, high-stakes effort to stabilise a situation on the brink of war. It often demands drastic measures, including intense crisis diplomacy, to prevent the final descent into open warfare.

Conflict settlement and resolution 🔗

Once violence has erupted and then begins to subside, the focus shifts to ending the fighting and repairing relationships. Conflict settlement refers to strategies that end direct violence and reach an agreement, through negotiation, mediation, or coercive measures like sanctions. Settlement stops the bloodshed but does not necessarily address why the conflict began.

Conflict resolution goes deeper. It aims to resolve the underlying incompatibilities and promote mutual acceptance of each party’s existence. Resolution is typically applied in the de-escalation phase, after violence has occurred, and it lays the groundwork for genuine, lasting peace rather than a temporary truce.

Breaking the cycle with positive peace 🔗

If conflicts naturally cycle from peace to war and back, is endless conflict inevitable? Galtung argued that it is not. The key lies in his distinction between negative and positive peace, popularised in his foundational work on peace research.

Negative peace is simply the absence of direct violence. A ceasefire creates negative peace, but the underlying grievances remain, which is why so many ceasefires collapse. Positive peace, by contrast, refers to the absence of structural violence combined with the presence of social justice. It exists when societies are built on equitable systems that meet people’s basic needs.

This is where the cycle can finally be broken. According to analysis of Galtung’s framework, positive peace is conceived as the antidote to structural violence, which is generated by hierarchical social orders that deprive less privileged groups of their basic needs. Galtung’s “violence triangle” of direct, structural, and cultural violence shows that simply stopping the fighting is never enough. To prevent one type of violence, the other two must be addressed as well.

Peacebuilding is the approach most closely tied to positive peace, because it weaves the mechanisms of peace into the social structure itself. As one explanation of Galtung’s conflict triangle notes, sustainable peace requires transforming violent cultures, dismantling violent structures, and addressing the root contradictions that fuel conflict. A society that achieves positive peace resolves disputes constructively before they can escalate, which means it never has to climb the conflict curve in the first place.

Why this framework matters 🔗

The life cycle of a conflict gives us more than a vocabulary. It offers a practical roadmap. By recognising whether a situation is in stable peace, unstable peace, open conflict, crisis, or war, leaders and citizens can choose interventions that fit the moment instead of applying the wrong tool too early or too late. Structural reform belongs to peacetime. Crisis diplomacy belongs to the brink of war. Reconciliation belongs to the aftermath.

Ultimately, the cycle reminds us that peace is not a fixed destination but an ongoing effort. Stability cannot be taken for granted, and the work of consolidating peace is every bit as demanding as the work of preventing war. The societies that endure are those that treat justice and inclusion not as luxuries, but as the foundation of lasting calm.

What do you think? If structural prevention during stable peace is the most effective way to stop conflicts before they begin, why do you think governments so often wait until the crisis stage to act? And in a deeply diverse society, what would genuine “positive peace” actually look like in everyday life?

References

1. https://www.transcend.org/tms/2024/06/on-johan-galtungs-approach-to-peace-studies/
2. https://www.usip.org/public-education-new/curve-conflict
3. https://www.researchgate.net/figure/Chronological-Phases-of-Conflict-Intensity-Levels-Swanstrom-and-Weissmann-2005-The_fig1_318960397
4. https://egyankosh.ac.in/bitstream/123456789/63230/1/Unit-5.pdf
5. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8365684/
6. https://www.beyondintractability.org/essay/conflict_stages
7. https://www.researchgate.net/publication/354697798_Conflict_Resolution_Interventions_in_the_Conflict_Cycle
8. https://extranet.creativeworldwide.com/CAIIStaff/Dashboard_GIROAdminCAIIStaff/Dashboard_CAIIAdminDatabase/resources/ghai/toolbox.htm
9. https://blogs.gwu.edu/ccas-panamericanos/peace-studies-wiki/peace-studies-wiki/approaches-to-peace/negative-and-positive-peace-framework/
10. https://onlinelibrary.wiley.com/doi/abs/10.1002/9781119895534.ch32
11. https://gandhi.study/conflict-mgt-transformation-peace-building/johan-galtung-conflict-triangle-violence/