Practice Areas
Litigation before International Courts and Tribunales
Representation as counsel and legal adviser in contentious cases and advisory proceedings.
International Environmental Law
Climate change, water law, and the environment.
Legal Team Management
Coordination of high-level international legal teams tailored to each case.
State Responsibility
Use of force, treaties, sovereignty, and diplomatic protection.
Maritime and Land Delimitation
Maritime boundaries, continental shelf, land boundaries, and disputed areas.
Arbitration, Mediation and Negotiation
Representation and strategic advice in arbitral proceedings, mediation processes and negotiated settlements of international dispute
Counsel and Legal Adviser
ESILA provides legal counsel and representation in proceedings before international courts and tribunals across a broad range of issues, including: state responsibility, use of force, land and maritime boundary delimitation, the law of the sea, international water law, the law of treaties, the right to self-determination, climate change law, and environmental law, as well as investment and commercial disputes. ESILA also assists States in mediation, conciliation, and the negotiation of international agreements. The firm's advisory practice focuses on identifying legal risks and opportunities at an early stage, allowing clients to make informed decisions before disputes escalate.
Case Management
ESILA assembles legal teams specifically designed for each case, drawing on a network of leading international lawyers and technical experts built over seventeen years of practice before international courts and tribunals. Its experience includes work on behalf of several sovereign States and international organisations in more than 13 proceedings before the International Court of Justice, as well as in other legal proceedings before domestic courts and arbitral tribunals. The firm’s experience managing complex international proceedings includes:
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Over 35 written submissions, including Applications, Memorials, Counter-Memorials, Replies, Rejoinders, and Preliminary Objections
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More than 15 oral hearings before the ICJ
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Active involvement in the implementation of over 15 ICJ Judgments and Orders
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International arbitration proceedings, including annulment and setting-aside of arbitral awards
This track record gives ESILA’s clients not only legal representation, but also institutional knowledge of how international proceedings actually unfold — from the initial legal strategy and written pleadings to oral advocacy, post-judgment steps, implementation, negotiation, or related follow-up proceedings. Each mandate is handled with the same degree of personal attention, regardless of scale..