Political participation of former combatants is a central component of peace agreements. Similarly, people’s acceptance of political parties derived from such agreements is a crucial element towards peace building. Considering the peace deal between the Colombian government and the Revolutionary Armed Forces of Colombia (Fuerzas Armadas Revolucionarias de Colombia, FARC), we ask “What factors shape popular support for the FARC’s political involvement?” We argue that attitudes towards the political integration of the former guerrilla are influenced by conflict experiences and partisan identities. Relying on survey data, our results indicate that conflict experiences and political identities alone are not correlated with attitudes towards the political integration of former insurgents. However, public support for former combatants having a political party is associated with conflict experiences only for those who feel close to parties that took a hawkish stance towards the agreement.