This article undertakes a qualitative empirical study on instances of disengagement and deradicalization amongst members of the Basque ethno-nationalist group, Euskadi Ta Askatasuna (ETA). The three broad motivations identified as the reasons for exit on an individual level are structural, organizational and personal. Structural factors would imply political and social changes perceived by the militants and likely to stimulate the decision to exit from terrorism, though its concrete expressions depend on contextual and situational conditions. Organizational factors refer to the internal functioning of a terrorist group or organization or to the course of violent action adopted by its leaders, which might generate disagreement and individual abandonment. Personal factors allude to experiences associated with a change in the order of preferences of a given individual that prompt the severing of ties with the terrorist group or organization after a prolonged period of imprisonment. While it is hard to generalise due to the nuances in every former member’s story, the results presented here suggest that the actual process of terrorist disengagement, eventually facilitated or inhibited by circumstances both internal and external to a terrorist group or organization, is not necessarily concomitant with that of deradicalization.