Intergroup Conflict refers to disagreement, hostility or incompatible action between socially defined groups. Conflict can involve competition over material resources, political authority, territory, status, recognition, cultural influence or symbolic issues. It ranges from everyday disputes and organisational rivalry to communal violence, civil conflict and war. Conflict does not necessarily require deep hatred between individuals because institutional incentives, group norms and perceived interests can generate hostile behaviour even among people who have limited personal animosity. Social psychological research examines how categorisation, identity, perceived threat and group norms influence conflict, while sociological and political approaches examine institutions, inequality, resources and historical relationships. Understanding intergroup conflict therefore requires attention to both psychological mechanisms and structural conditions.
Realistic Conflict Theory proposes that competition over scarce or valued resources can produce negative intergroup attitudes and behaviour. In this framework, groups whose goals appear incompatible may perceive one another as obstacles, increasing hostility and reducing willingness to cooperate. Resources need not be purely material. Political influence, social status, territory, employment opportunities, cultural recognition and institutional control can all become objects of perceived competition.
Importantly, perceived scarcity can matter even when objective scarcity is uncertain because groups respond to their understanding of the situation. Conversely, shared goals can create incentives for cooperation when groups recognise mutual dependence. This helps explain why relationships can change rapidly when the structure of incentives changes. Conflict therefore cannot always be explained simply by longstanding cultural differences or individual prejudice.
Social Identity Theory provides another important explanation by emphasising group categorisation, identification and social comparison. When group membership becomes highly salient, individuals may perceive their ingroup as more homogeneous and outgroups as more distinct or threatening. Perceived threats to group identity or status can intensify defensive reactions. Competition can also encourage groups to construct narratives that justify their own behaviour and portray opponents negatively.
However, social identity does not automatically generate conflict because strong group identities can coexist with peaceful intergroup relations. The context matters, particularly whether group boundaries are rigid, whether resources appear threatened, whether leaders encourage hostility and whether institutions provide mechanisms for peaceful dispute resolution. Identity therefore interacts with material and political conditions rather than functioning as an independent universal cause of conflict.
Intergroup conflict can be intensified by historical grievances and collective memories. Communities may remember previous violence, discrimination, displacement or political domination and interpret contemporary events through these historical experiences. Such memories can influence perceptions of threat even when current circumstances differ substantially from the past. Leaders and organisations may selectively invoke historical narratives to mobilise support, legitimise policies or strengthen group cohesion. This does not mean historical memory inevitably causes conflict. Shared institutions, reconciliation processes, education, intergroup contact and political agreements can alter how histories are interpreted. Historical analysis is nevertheless important because apparent disagreements over current policy can sometimes reflect deeper disputes about identity, recognition and unresolved historical experience.
Escalation is another important feature of intergroup conflict. Conflict can develop through feedback mechanisms in which hostile actions increase fear, fear increases defensive behaviour and defensive behaviour is interpreted as evidence of hostile intent. Communication failures can amplify this process because ambiguous actions may be interpreted according to existing expectations. Leaders, media organisations and social networks can influence escalation by framing events as evidence of collective threat or by encouraging restraint.
Rumours and misinformation can spread particularly quickly when group boundaries are already salient. De escalation therefore often requires credible communication, reliable information, institutional mediation and mechanisms that prevent isolated incidents from becoming interpreted as attacks by an entire group. The social meaning assigned to an event can sometimes matter as much as the event itself.
Conflict can take institutional as well as interpersonal forms. Segregated institutions, unequal political representation, discriminatory laws or unequal access to resources can reproduce antagonistic relationships without continuous direct confrontation. Conversely, institutions can provide mechanisms for managing conflict through courts, elections, negotiation, power sharing, collective bargaining and independent oversight. The design of institutions can influence whether groups perceive political competition as existential or manageable. Where losing a political contest means permanent exclusion, groups may have stronger incentives to resist compromise. Where institutions guarantee representation, legal protection and peaceful alternation of authority, competition may remain within accepted boundaries. Intergroup conflict should therefore be studied partly as a problem of institutional incentives and governance rather than solely as a problem of individual attitudes.
Intergroup conflict is not synonymous with violence. Conflict can remain verbal, electoral, legal, economic or symbolic. Groups can dispute policies, compete for resources and mobilise against one another without physical aggression. Violence represents a particular escalation in which physical force causes or threatens harm, and armed conflict constitutes a still more specific form. Maintaining these distinctions matters because interventions appropriate to a workplace dispute differ substantially from those required in communal violence or war.
Similarly, describing every disagreement as intergroup conflict can exaggerate social divisions. Researchers therefore consider intensity, duration, organisation, targets, methods and consequences when classifying conflicts. The same groups may cooperate in one domain while conflicting in another, demonstrating that intergroup relationships are multidimensional rather than uniformly hostile.
Managing intergroup conflict involves approaches such as negotiation, mediation, arbitration, institutional reform, confidence building, shared projects, contact and power sharing. The appropriate approach depends on the source and intensity of the conflict. Negotiation is more feasible when parties can identify mutually acceptable outcomes, while mediation can help when direct communication has broken down. Institutional reforms may be necessary when conflict is sustained by unequal representation or discriminatory rules.
Reconciliation processes may address historical grievances and relationships, although their design and effectiveness vary considerably. Conflict resolution should not be confused with simply suppressing visible disagreement because unresolved grievances can persist beneath apparent calm. A durable reduction in conflict generally requires mechanisms that alter incentives, provide legitimate channels for disagreement and address sufficiently the interests and security concerns of the groups involved.
