Dr. Martin Belov is Professor in Constitutional and Comparative Constitutional Law at the University of Sofia ‘St. Kliment Ohridski’, Faculty of Law. He is vice dean of the same faculty. Martin Belov is also adjunct professor at the University Roma Tre (Rome, Italy) and visiting professor in many European universities.

• 1. Introduction.- 2. Territoriality and Territorial Politics in Constitutional Law.- 3. Secession in Law: a Revolutionary or a Conservative Concept?.- 4. Revolution and devolution in contemporary European territoriality – political orders and moral borders in Exit-ing.- 5. Territorial Disputes and State Sovereignty: International Law and Politics.- 6. Humanitarian intervention and its impact on state sovereignty and human rights.- 7. Framing revolutions through international law? Self-determination referendums beyond post-colonial situations.- 8. Federalism and Secession.- 9. Brexit and the secessionist challenges in the UK.- 10. Territorial Politics of Regionalism in Italy between Integration and Disintegration.- 11. The limits of ambiguity: Success and Failure of the Spanish Constitutional Model of Territorial Politics.- 12. The Catalan Secessionists’ Challenge: Reconciling their Quest for Independence and Constitution.- 13. Territorial Politics and Sub-National Constitutionalism.Lessons from Bosnia and Herzegovina.- 14. Internal secession: The Ethiopian experience in comparative perspective.