This book examines an important unresolved question of current international law: the legal position of third-party countermeasures.

Martin Dawidowicz was formerly Departmental Lecturer in Public International Law at the University of Oxford, and is currently Visiting Lecturer in Public International Law at Stockholms Universitet. He was previously an associate at LALIVE in Geneva where he practiced public international law and international arbitration, and before that he worked in the UN Office of Legal Affairs in New York.

1. Introduction; 2. Third-party countermeasures and the ICJ; 3. Third-party countermeasures in the ILC; 4. Third-party countermeasures in state practice; 5. Permissibility of third-party countermeasures: evaluation; 6. Third-party countermeasures and safeguards against abuse; Conclusion; Bibliography; Index.