Ideology is a powerful tool for parties in armed conflicts, as it provides a source of motivation for combatants to stay in group under difficult circumstances and to perform actions that put them at risk or defy their personal ethical codes. But once in peacetime, besides the effects of past negative intergroup experiences, radical beliefs may become an obstacle to reconciliation and prolong the confrontation in the minds of ex-combatants. An examination of 484 recently decommissioned soldiers and insurgents in Colombia shows how the persistent ideological differences among former enemies help us explain postconflict intergroup bias beyond the effects of wartime victimization. We conclude that addressing the ideological radicalization that prolongs confrontation after armed conflict ceases is fundamental to creating proper conditions for reconciliation, and it offers a viable policy alternative to the much-needed healing from wartime-related trauma.
