1. Adam H (1994) Formation and Recognition of New States: Somaliland in Contrast to Eritrea. Rev Afr Political Econ 21(59):21–38
2. Adnan S, Reese A (2014) Beyond the Islamic State: Iraq’s Sunni Insurgency, Middle East Security Report 24, the Institute for the Study of War, United States of America
3. Aldrich G (1991) Prospects for United States Ratification of Additional Protocol I to the 1949 Geneva Conventions. Am J Int Law 85(1):1–20
4. Aldrich G (2000) The Laws of War on Land. Am J Int Law 94(1):42–63
5. Akande D (2012) Classification of Armed Conflicts: Relevant Legal Concepts. In: Wilmshurst Elizabeth (ed) International Law and the Classification of Conflicts. Oxford University Press, Oxford, pp 32–79