Mr Alexander Gilder

Personal profile

Alex joined the College having previously taught at City, University of London and the University of Essex. He specialises in public international law, especially areas related to international peace and security.

His research currently follows two strands. First, Alex looks at themes related to stabilization in UN peacekeeping including robust force, counter-terrorism, and the effect of militarisation on other mandated tasks, such as entrenching the rule of law. Second, he is interested in the theory and history of international law and has worked on the relationships between the concept of human security, the individual, and international law. His research on these topics has appeared in journals, such as International Peacekeeping, Netherlands International Law Review, and the Indian Journal of International Law.

Alex completed his PhD at City, University of London and also holds an LLM in Public International Law (and International Human Rights Law) from Utrecht University and an LLB (Hons) from the University of Lincoln. His PhD investigated whether the mandates of UN stabilization missions operationalise the non-legal concept of human security and included case studies on MINUSMA, MINUSCA, and UNMISS. 

In 2019 Alex, with Sabrina White (University of Leeds), was awarded funding from the British International Studies Association to convene a multidisciplinary workshop entitled ‘Militarisation and the Local in Peacekeeping: Ambition, Pragmatism, and Adaptability’. The workshop was held under the auspecies of the BISA Peacekeeping and Peacebuilding Working Group where Alex is an active member. In 2017 he was awarded a merit-based scholarship (sponsored by Baroness Higgins GBE QC) to attend the Summer Course on Public International Law at The Hague Academy of International Law.

Alex was previously the Editorial Assistant for the Journal on the Use of Force and International Law and sat on the Editorial Board of the Utrecht Journal of International and European Law.

Research interests

  • Public international law
  • UN peace operations
  • Human security
  • International human rights law
  • International humanitarian law
  • Use of force
  • International legal theory


Alex currently teaches Public International Law (LL2005/LL3505), Public Law (Constitutional, Administrative and Human Rights Law) (LL1001), English Legal System (LL1005), and supervises dissertations (LL3003).

Educational background

PhD, City, University of London

LLM Public International Law (and International Human Rights Law), Utrecht University

PgCAP, City, University of London

LLB (Hons), University of Lincoln

Fellow, Higher Education Academy


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