Victim-Perpetrator Cycle

What the victim-perpetrator cycle means

The victim-perpetrator cycle is the documented pattern in which groups that have endured sustained persecution - genocide, enslavement, ethnic cleansing, systemic discrimination - go on to persecute others once they gain power. Rather than producing lasting empathy, the experience of collective suffering can, under certain conditions, create the psychological and political foundations for a new round of aggression directed at weaker groups.

This is not a moral judgement about any specific group. It is a structural observation about what happens when unhealed collective trauma meets newfound power. The pattern has been studied extensively by political psychologists, conflict researchers, and historians, and it recurs across centuries, continents, and cultures.

The key insight is uncomfortable but important: being a victim does not automatically make a group compassionate. In fact, it can do the opposite. The memory of suffering can harden into a permanent sense of existential threat - a conviction that the group is always one step away from annihilation. That hyper-vigilance, combined with power and an ideology of entitlement, creates the conditions for disproportionate aggression.

How collective trauma becomes collective aggression

The role of chosen trauma

The political psychologist Vamik Volkan, who spent decades working with post-conflict societies, coined the term chosen trauma to describe how a group’s historical wound becomes a transgenerational marker of identity. The original event - a massacre, an expulsion, a period of subjugation - is passed down through stories, rituals, commemorations, and emotional inheritance. Each generation absorbs not just the facts of what happened but the feelings associated with it: the fear, the rage, the humiliation.

Over time, the trauma becomes central to the group’s self-understanding. It answers the question “who are we?” with “we are the ones who suffered.” This is entirely understandable. But it also creates a dangerous vulnerability. When a group’s identity is built around victimhood, any perceived threat - even a minor one - can activate the full emotional weight of the original trauma. A political disagreement becomes an existential crisis. Criticism becomes persecution. And the response becomes disproportionate, because the group is not responding to the present situation but to the accumulated pain of generations.

From fear to pre-emptive aggression

The psychologist Ervin Staub, himself a Holocaust survivor, spent decades studying the origins of genocide and mass violence. His research identified a clear pathway from collective victimhood to collective perpetration. Groups that have suffered deeply are not inherently more compassionate - they are more afraid. And fear, when combined with power and an ideology of entitlement, is the recipe for aggression.

Staub argued that the transition happens through several stages. First, the group develops a heightened sensitivity to threat, interpreting ambiguous situations through the lens of past persecution. Then, an ideology emerges that frames the group’s safety as requiring the control or suppression of others. Finally, the group begins to act on that ideology, often with the genuine belief that it is acting in self-defence rather than aggression.

The phrase “never again” captures this shift perfectly. As a universal principle - never again should any group suffer this way - it is a profound moral commitment. But when it narrows to mean “never again to us, whatever the cost to others,” it becomes a licence for exactly the kind of behaviour it was meant to prevent.

The role of moral licensing in the cycle

One of the mechanisms that sustains the victim-perpetrator cycle is moral licensing - the psychological phenomenon in which past good behaviour (or past suffering) creates a felt credit that permits future bad behaviour. For groups, this works at scale. The historical record of persecution functions as a permanent moral deposit, and present-day actions are drawn against it.

This creates a peculiar form of cognitive dissonance. The group’s self-image as victim and its reality as perpetrator exist simultaneously, and the dissonance is resolved not by changing behaviour but by reframing it. Aggression becomes “security.” Oppression becomes “self-defence.” Collective punishment becomes “necessary measures.” The vocabulary shifts, but the pattern is the same one the group once suffered under.

The victim-perpetrator cycle in history

Revolutionary France and the Terror

The French Revolution began as a genuine uprising against tyranny. The Third Estate - the common people - had been systematically exploited by the monarchy and aristocracy for centuries. Their grievances were real, their suffering documented, their cause broadly just. But within four years of overthrowing the monarchy, the revolutionaries had unleashed the Reign of Terror, executing thousands of perceived enemies of the state. The oppressed became the oppressors, wielding the guillotine with the same indifference to individual humanity that the old regime had shown them.

Post-colonial authoritarian regimes

Across the post-colonial world, liberation movements that fought genuine imperial oppression went on to establish authoritarian regimes once in power. Leaders who had been imprisoned, tortured, or exiled by colonial rulers adopted strikingly similar methods against their own dissidents and minorities. The collective trauma of colonisation did not produce more humane governance - in many cases, it produced a mirror image of what had come before, justified by the language of liberation.

Religious persecution cycles

The pattern also appears across religious history. Communities that fled persecution for their beliefs - seeking freedom to worship as they chose - have repeatedly established new settlements where they then imposed rigid orthodoxy on others, punishing heresy and difference with the same tools once used against them. The memory of being persecuted for belief did not translate into tolerance for other beliefs. Instead, it often intensified the conviction that the group’s own beliefs were the only correct ones, and that deviation was not just wrong but dangerous.

The Rwandan genocide

In Rwanda, the Hutu majority had been systematically subordinated under colonial rule, with Belgian administrators favouring the Tutsi minority and constructing a rigid ethnic hierarchy. The resentment this produced was real, the historical injustice documented. But the narrative of Hutu victimhood was later mobilised to justify genocide against the Tutsi in 1994. The collective memory of subordination became the emotional fuel for mass murder.

Why the victim-perpetrator cycle is so difficult to break

Identity built around suffering

The deepest challenge is that the group’s victim identity remains central to its self-understanding even as it wields power. The narrative of past suffering becomes a shield against accountability. “How can we be the oppressors when we are the ones who suffered?” This is not hypocrisy in the simple sense. It is a profound failure of self-perception - the inability to hold two truths at once: that a group can be both a historical victim and a present-day perpetrator.

This connects to in-group/out-group bias in a specific way. The boundaries that were hardened during persecution - the sharp line between “us” (the persecuted) and “them” (the persecutors) - do not dissolve when the power dynamic shifts. They simply find new targets. The group’s identity is defined not just by what it has suffered but by who it has suffered at the hands of, and that framework of suspicion extends easily to new “thems.”

Competitive victimhood as a silencing tool

Groups caught in this cycle often deploy what researchers call competitive victimhood - the insistence that their suffering is greater, more significant, or more morally weighty than the suffering of those they are now harming. This functions as a rhetorical silencing tool. Anyone who raises concerns about the group’s current behaviour is accused of minimising or denying its historical pain. The conversation becomes impossible because the frame has been set: to criticise the group is to side with its historical persecutors.

This is closely related to scapegoating - the identification of new targets onto whom the group can project its accumulated fear and anger. The targets are often minorities or marginalised groups who lack the power to resist, making them psychologically convenient substitutes for the original persecutors.

The structural temptation of power

There is also a simpler, structural explanation that does not require any psychological mechanism at all. Power corrupts. Groups that gain power face the same temptations as any other powerful group: the desire to maintain control, the fear of losing what has been gained, the institutional drift toward self-preservation at the expense of principle. Historical suffering does not grant immunity from these dynamics. If anything, the trauma creates an additional justification for accumulating and wielding power aggressively: “We must be strong so that what happened to us can never happen again.”

This is where the cycle connects to manufactured consent. Internal narratives of existential threat are used to build public support for policies and actions that would otherwise be questioned. The group’s own members are told that the threat is real, that compromise is weakness, and that dissent is betrayal. The emotional weight of historical suffering makes these narratives extraordinarily persuasive.

Breaking the cycle

Ervin Staub argued that the cycle can be broken, but only through deliberate, sustained effort. Groups must be supported in processing their collective trauma without allowing it to become the foundation for aggression. This requires what Staub called “inclusive caring” - the extension of empathy beyond the group’s own boundaries to include those who are different or who are perceived as threatening.

This is difficult but not impossible. Some post-conflict societies have managed it through truth and reconciliation processes, through education that emphasises shared humanity over group identity, and through leadership that refuses to weaponise historical pain. The key is recognising that acknowledging past suffering and holding a group accountable for present behaviour are not contradictory acts. Both are necessary. Both are possible. And insisting on both is the only way to ensure that the phrase “never again” retains its universal meaning.