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Photo of Dr Aurel Sari

Dr Aurel Sari

Associate Professor of Public International Law


01392 725608

Amory A22


Dr Aurel Sari is an Associate Professor of Public International Law at the University of Exeter and a Fellow of Supreme Headquarters Allied Powers Europe.

Dr Sari is an expert in international law. His scholarship focuses primarily on international conflict and security law and the law relating to military operations. He has published widely in leading academic journals on the law of armed conflict, status of forces agreements, peace support operations, international human rights law and the legal framework of European security and defence policy. His work has been funded by the British Academy and the Economic and Social Research Council. Dr Sari is one of the principal experts on the legal aspects of hybrid warfare. He has spoken and written extensively on the subject, including at the invitation of the Council of Europe, NATO, the European Centre of Excellence for Countering Hybrid Threats, US EUCOM and US AFRICOM. He has undertaken research and consultancy projects on behalf of the UK Ministry of Defence and the NATO Strategic Communications Centre of Excellence.

In addition to teaching law at the University of Exeter, Dr Sari lectures regularly on international law and military operations in the UK and abroad. He has contributed to training courses at NATO School Oberammergau, the Institute of International Humanitarian Law at San Remo, the European Security and Defence College and the Austrian Ministry of Defence. He has also taught on the Advanced Command and Staff Course at the UK Defence Academy and served as the convenor of a law of armed conflict course for the UK Ministry of Defence.

Dr Sari takes an active part in international research initiatives. He was a member of the group of experts that prepared the Leuven Manual on the Law of Peace Operations. He also served on the International Law Association’s Committee on Nuclear Weapons, Non-proliferation and Contemporary International Law and on its Study Group on The Conduct of Hostilities under International Humanitarian Law. In 2009, he was a Visiting Fellow at the Lauterpacht Centre for International Law in Cambridge. Dr Sari is a member of the editorial board of The Military Law and the Law of War Review and a committee member of the UK National Group of the International Society for Military Law and the Law of War.

Dr Sari maintains close working relationships with legal practitioners in the armed forces and has participated in a number of multinational exercises as an augmentee. He is a regular contributor to leading academic blogs in Europe and the United States. Dr Sari studied law and politics at the University of Durham (BA, First Class), the London School of Economics (LLM, Distinction) and University College London (PhD).

For more information on Dr Sari’s work, please visit his website and his SSRN pages. You can also follow him on Twitter at @aurelsari.

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Dr Sari welcomes approaches from prospective doctoral students concerning research projects in public international law. He is particularly interested in supervising projects on the law of armed conflict, peace support operations, hybrid threats and gray zone conflict, jurisdictional immunities, international responsibility and EU security and defence policy, but is ready to consider good ideas on other subjects as well.

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Copyright Notice: Any articles made available for download are for personal use only. Any other use requires prior permission of the author and the copyright holder.

| 2024 | 2023 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2009 | 2008 | 2007 | 2006 | 2005 |


  • Jr MCR, Sari A. (2024) Hybrid Threats and Grey Zone Conflict The Challenge to Liberal Democracies.



  • Sari A. (2021) Hybrid Threats and the Law: Building Legal Resilience, European Centre of Excellence for Countering Hybrid Threats.
  • Sari A. (2021) Craig Jones, The War Lawyers: The United States, Israel, and Juridical Warfare, Journal of Conflict and Security Law, volume 26, no. 2, pages 445-454, DOI:10.1093/jcsl/krab010.
  • Sari A, Nasu H. (2021) NATO and Collective Defense in Space: Same Mission, New Domain, Turkish Policy Quarterly, volume 20, pages 35-43. [PDF]
  • Hudson B, Sari A. (2021) Stirring Trouble at the Border - Part 2. [PDF]
  • Hudson B, Sari A. (2021) Stirring Trouble at the Border - Part 1. [PDF]



  • Sari A. (2019) Urban Warfare: The Obligations of Defenders.
  • Sari A. (2019) Hybrid Law, Complex Battlespaces: What’s the Use of a Law of War Manual?, The United States Department of Defense Law of War Manual: Commentary and Critique, Cambridge University Press, 403-430.
  • Sari A. (2019) The Immunities of Visiting Forces, The Cambridge Handbook of Immunities and International Law, Cambridge University Press, 559-576.
  • Sari A. (2019) The Mutual Assistance Clauses of the North Atlantic and EU Treaties: The Challenge of Hybrid Threats, Harvard National Security Journal, volume 10, pages 405-460. [PDF]


  • Sari A. (2018) Receiving States, Sending States and the Impact of Their Domestic Laws, DOI:10.2139/ssrn.3168902.
  • Jachec-Neale A, Sari A. (2018) International Law in 2050, ECIL Occasional Paper 2018/1.
  • Sari A. (2018) Collective Self-Defense and the “Bloody Nose Strategy”: Does it Take Two to Tango?.
  • Sari A. (2018) ‘Why Russia is wrong to claim that Britain violated the Chemical Weapons Convention after Skripal spy attack.
  • Sari A. (2018) ‘The Council of Europe’s Parliamentary Assembly Takes on the Legal Challenges of Hybrid Warfare.
  • Sari A, Paul J C. (2018) Jurisdiction, The Handbook of the Law of Visiting Forces, Oxford University Press, 205-260.
  • Sari A. (2018) Hybrid Warfare, Law and the Fulda Gap, Complex Battle Spaces: The Law of Armed Conflict and the Dynamics of Modern Warfare, Oxford University Press, 161-190. [PDF]


  • Sari A. (2017) ‘Was the drone strike on IS recruiter Sally Jones lawful?.
  • Sari A. (2017) ‘Is it lawful to destroy the enemy? Some thoughts on the current British debate.
  • Sari A. (2017) Reversing a Withdrawal Notification under Article 50 TEU: Can A Member State Change Its Mind?, European Law Review, volume 42, pages 451-451.



  • Sari A. (2015) The Europeanisation of Inter national Law: The Status of International Law in the EU and its Member States, Netherlands International Law Review, volume 56, no. 2, pages 280-282, DOI:10.1017/s0165070x09002800.
  • Sari A. (2015) The Status of Armed Forces in Public International Law: Jurisdiction and Immunity, DOI:10.2139/ssrn.2555278.
  • Sari A. (2015) ‘IHL Does Authorise Detention in NIAC: What the Sceptics Get Wrong.
  • Sari A. (2015) ‘IHL Does Authorize Detention in NIAC: A Rejoinder to Rogier Bartels.
  • Sari A. (2015) Barking up the Wrong Tree: How Not to Save the British Armed Forces from Legal Defeat.
  • Sari A. (2015) ‘The Authority to Detain in NIACs Revisited: Serdar Mohammed in the Court of Appeal.
  • Sari A. (2015) ‘Legal Aspects of Hybrid Warfare.
  • Sari A. (2015) Trucker’s Hitch: Targeting ISIL Oil Transport Trucks and the Need for Advance Warnings.
  • Sari A. (2015) The Status of Armed Forces in Public International Law: Jurisdiction and Immunity, Research Handbook on Jurisdiction and Immunities in International Law, Edward Elgar, 319-371. [PDF]
  • Sari A, Aughey S. (2015) Targeting and Detention in Non-International Armed Conflict: Serdar Mohammed and the Limits of Human Rights Convergence, International Law Studies, volume 91, pages 60-118. [PDF]


  • Sari A. (2014) The Juridification of the British Armed Forces and the European Convention on Human Rights: ‘Because It’s Judgment that Defeats Us’, DOI:10.2139/ssrn.2411070.
  • Sari A. (2014) Ukraine Insta-Symposium: When does the Breach of a Status of Forces Agreement amount to an Act of Aggression? The Case of Ukraine and the Black Sea Fleet SOFA.
  • Sari A. (2014) The Legal Framework of Future Military Operations: Inching Towards a More Strategic Approach?.
  • Sari A. (2014) Sorry Sir, We’re All Non-State Actors Now: A Reply to Hill-Cawthorne and Akande on the Authority to Kill and Detain in NIAC.
  • Sari A. (2014) Jaloud v Netherlands: New Directions in Extra-Territorial Military Operations.
  • Sari A. (2014) Untangling Extra-Territorial Jurisdiction from International Responsibility in Jaloud v. Netherlands: Old Problem, New Solutions?, Military Law and the Law of War Review, volume 53, pages 287-317. [PDF]
  • Sari A. (2014) Written Evidence on ‘Derogations from the European Convention On Human Rights in Deployed Operations’, House of Commons Defence Committee, The Stationery Office. [PDF]


  • Sari A. (2013) Article 37, The Treaty on European Union (TEU): A Commentary, Springer, 1131-1145, DOI:10.1007/978-3-642-31706-4_38. [PDF]
  • Sari A. (2013) Article 29, The Treaty on European Union (TEU): A Commentary, Springer, 1017-1039, DOI:10.1007/978-3-642-31706-4_30. [PDF]
  • Sari A. (2013) Article 28, The Treaty on European Union (TEU): A Commentary, Springer, 981-1016, DOI:10.1007/978-3-642-31706-4_29. [PDF]


  • Sari A. (2012) UN Peacekeeping Operations and Article 7 ARIO: The Missing Link, International Organizations Law Review, volume 9, pages 77-85, DOI:10.1163/15723747-00901013. [PDF]
  • Sari A. (2012) Article 25, Smit and Herzog on The Law of the European Union, Matthew Bender, LexisNexis.
  • Sari A. (2012) Article 26, Smit and Herzog on The Law of the European Union, Matthew Bender, LexisNexis.
  • Sari A. (2012) Article 24, Smit and Herzog on The Law of the European Union, Matthew Bender, LexisNexis.
  • Sari A. (2012) Between Legalization and Organizational Development: Explaining the Evolution of EU Competence in the Field of Foreign Policy, EU External Relations Law and Policy in the Post-Lisbon Era, TMC Asser Press, 59-95. [PDF]


  • Sari A. (2011) Kompetenzlehre Internationaler Organisationen (Theory of the Powers of International Organizations), International Organizations Law Review, volume 8, no. 1, pages 279-284, DOI:10.1163/157237411x584039.
  • Sari A. (2011) Decisions on Operational Action and Union Positions: Back to the Future?, The European Union after Lisbon: Constitutional Basis, Economic Order and External Action, Springer, 533-550. [PDF]
  • Sari A. (2011) Autonomy, Attribution and Accountability: Reflections on the Behrami Case, International Organisations and the Idea of Autonomy, Routledge, 257-277. [PDF]
  • Sari A. (2011) The Relationship between Community Law and International Law after Kadi: Did the ECJ Slam the Door on Effective Multilateralism?, International Law in a Multipolar World, Routledge, 303-322. [PDF]


  • Sari A. (2009) The Al-Jedda Case before the House of Lords, Journal of International Peacekeeping, volume 13, pages 181-196, DOI:10.1163/187541109X403034. [PDF]
  • Sari A. (2009) The European Union Status of Forces Agreement (EU SOFA), Journal of Conflict and Security Law, volume 14, pages 353-391. [PDF]



  • Sari A. (2007) The EU Status of Forces Agreement: Change and Continuity in the Law of Visiting Forces, Military Law and the Law of War Review, volume 46, pages 9-254. [PDF]


  • Sari A. (2006) Written Evidence on 'Parliamentary Control over the Armed Forces in Germany', House of Lords Constitution Committee, The Stationery Office. [PDF]


  • Sari A. (2005) The Danish Cartoons Row: Re-Drawing the Limits of the Right to Freedom of Expression?, Finnish Yearbook of International Law, volume 16, pages 365-398. [PDF]

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Modules taught

  • LAW3047 - Dissertation
  • LAW3146 - International Law, Conflict and Strategy
  • LAWM097 - International Law of Armed Conflict

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