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 conflict 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. Alex has worked on the relationships between the concept of human security, the individual, and international law and is working on a new project investigating the power structures of international law.

Alex holds an LLM in Public International Law from Utrecht University and an LLB (Hons) from the University of Lincoln. He is currently writing up his PhD at City. His PhD thesis investigates whether the mandates of UN stabilization missions operationalise the non-legal concept of human security and includes case studies on MINUSMA, MINUSCA, and UNMISS. 

In 2019 Alex co-convened, with Sabrina White (University of Leeds), an interdisciplinary workshop entitled ‘Militarisation and the Local in Peacekeeping: Ambition, Pragmatism, and Adaptability’ under the remit of the British International Studies Association. Alex has previously received a Graduate Teaching Assistantship from The City Law School, 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, and Second Equal Prize in the Royal United Services Institute’s Trench Gascoigne Competition.

Research interests

  • Public international law
  • UN peace operations
  • Human security
  • International humanitarian law
  • International human rights law
  • Use of force
  • Counter-terrorism


Alex currently teaches Public International Law, Public Law (Constitutional, Administrative and Human Rights Law), and English Legal System.

Educational background

LLM Public International Law, Utrecht University

LLB (Hons), University of Lincoln

PgCAP, City, University of London

Fellow, Higher Education Academy


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