Mary Guest


Mary is an Associate Editor of EJIL:Talk! She qualified and practised as a senior associate in telecoms, media and technology at Clifford Chance LLP, following which she was Head of Legal – Commercial at The Football Association in England. After a spell at Linklaters LLP, she moved into an in-house General Counsel role within FMCG. She has completed an LLM at the University of Cambridge, for which she was awarded the Clive Parry Prize for International Law. Mary can be contacted at

Recently Published

Announcements: CfA International Humanitarian Law Competition & Summer School; Chatham House Countermeasures in Cyberspace; Summer School in EU External Relations Law; CfP Journal of International Law of Peace and Armed Conflict; Israel-Palestine Conflict at the ICJ; CfP Yearbook of International Humanitarian Law; Supranational Criminal Law Lectures; Evolution of the Lex Olympica Conference; AI and Human Rights Conference

1. Call for Applications: 4th Kırımlı Dr. Aziz Bey International Humanitarian Law Competition & Advanced Summer School. This summer school and competition will take place between 9 - 14 September 2024 in Heybeliada, İstanbul, Türkiye. The Competition & the Advanced Summer School are organized by the Istanbul Center for International Law (ICIL) and Türk Kızılay (Turkish Red Crescent),…

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Announcements: Ship as a Unit Rule Lecture; Sanctions, Remittances, and (in)Security Conference; CfP Change and Stability in EU External Relations Law; CfP Cambridge International Law Journal; CfP ASIL International Criminal Law Interest Group; CfP International Community Law Review; Rosalyn Higgins Prize; Western Academy for Advanced Research Position; Summer School on EU Migration and Asylum Law and Policy; Exploring Multi-Fora Litigation Conference; CfP EYCL; CfP Small States and Arctic Sustainability Workshop

1. The Scope of the ‘Ship as a Unit’ Rule’ Lecture. A Lecture by Judge Liesbeth Lijnzaad in the Public International Law Lecture Series, entitled ‘We’re in this together, the scope of the ‘ship as a unit’ rule’ chaired by Dr Meagan Wong will take place on Wednesday 8 May, 6pm BST. The Public International Law…

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Announcements: CfP Energy Charter Treaty and Dispute Resolution Mechanisms; CfS Juris Gentium Law Review; CfP General Principles in EU External Relations Law; The Identity of Governments in International Law; Goldsmiths Law Annual Human Rights Symposium & Lecture

1. Call for Papers: The Energy Charter Treaty and Dispute Resolution Mechanisms Conference. This conference on the Energy Charter Treaty (ECT) and dispute resolution mechanisms in the energy sector is set to take place on 5 October 2024, at the International Hellenic University in Thessaloniki, Greece. Key topics for consideration include: The ECT's ongoing relevance and adaptation to…

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