This chapter concludes the book by summarising its key findings, showcasing new trends in state practices, and identifying areas for future research. Some of the book’s key questions included: how did citizenship deprivation gain such traction in liberal democratic cultures supposedly based on the principles of non-arbitrariness and equal citizenship? And when the law did resist the pull of citizenship deprivation, how could these resistances be explained? As the book demonstrated, attributing bad conduct to foreignness by linking citizenship deprivation to migration has helped to normalise these powers. It also showed how citizenship and deprivation regimes are connected with constitutional structures, demonstrating how the nature of states’ practices ties to these deeper contextual and constitutional histories. Indeed, adopting a constitutional perspective on state citizenship practices has helped to reveal how constitutional narratives about citizenship influence the behaviour of state actors (by providing legitimation frames and discourses) and how these narratives tie to states’ constitutional structures.