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.