Global Citizenship Law:
International Migration and Constitutional Identity
With more than 250 million international immigrants, the manner in which new citizens are/should be "created" has become a controversial issue. Traditionally, international law has not regulated nationality law; naturalization requirements remain the last stronghold of national sovereignty. This project advances the establishment of a new subfield in public international law—International Citizenship Law (ICIL)—which would regulate nationality law. It asks a critical and timely question: what are and should be the international standards in setting up requirements for naturalization and, more broadly, for granting citizenship?
The project has five objectives:  to investigate the history of the law of naturalization and what it can teach us about 21th-century challenges;  to identify legal developments that, taken together, may form the basis for ICIL;  to set out the theoretical foundations and the justifications for the establishment of ICIL;  to analyze the normative and structural implications derived from an-ICIL approach for future citizenship policy development,  to explore the interrelationship between ICIL, global migration, and identity. The outcome can serve as a basis for a reform in international law, European law, and national systems.