Anna Stilz is Professor Laurance S. Rockefeller in politics at the University of Princeton University of Human Values. It is an important figure in contemporary political philosophy, especially in branches related to political authority, membership and obligation, land rights, nationalism, self-determination and language rights, among others. In this interview, we seek to clarify with her the main arguments and regulatory demands in her book on Territorial Sovereignty, especially on the controversial issue of self-determination and secession.