Geographers have expanded notions of the carceral, the military and war far beyond conventional ideas of the prison, the armed forces of the nation state and armed conflict, thus situating spaces of confinement, surveillance and monitoring in deep histories of violence. Nevertheless, we argue that renewed attention to these ‘conventional’ institutions reveals unanswered questions about prisons during and after war, conversion of military bases, and deployment of ex-military personnel, whose exploration would enhance understandings of the nature of the carceral, and the relationship between ‘military’ and ‘civilian’.