Denationalization
Citizenship in the modern state is in many ways uniquely secure as a status. Yet states have always possessed some bases through which they may remove citizenship, including fraud, disloyalty, acquisition of another citizenship, marriage to a foreigner, and threat to public order. Indeed, denationalization powers have recently gained attention as many liberal states have created new laws to strip citizenship from individuals involved with terrorism. In this chapter, I explore the practice of denationalization. I first consider the definition, grounds, and historical development of denationalization power. I then draw from recent academic work to show how denationalization offers insights into questions of significance relating to the ethical limits of state power, the historical development of citizenship status, and the way restrictive immigration controls impact upon state members. I conclude with a discussion of some outstanding issues raised by the denationalization for scholars of citizenship.