This work investigates the normative and political justifications for secession within the framework of modern democratic theory. Percy B. Lehning, a scholar of political philosophy, examines the tension between state sovereignty and the right to self-determination. He evaluates various theoretical models to determine when, if ever, a group possesses a legitimate claim to break away from an existing political entity.

Scholars in political philosophy recognize this text as a rigorous contribution to the debate on state legitimacy and group rights. Readers frequently note the academic density of the prose, which is intended for advanced students and researchers in political theory.