War and armed conflict — Prisoners of war — Geneva Convention on Prisoners of War, 1949 — Whether stating rules of customary international law — Treatment of prisoners of war — Conditions of evacuation — Principles of humane treatment — Medical treatment — Allowance for conditions in third world country — Repatriation — Requirement of immediate repatriation at close of hostilities — Conflict between Eritrea and Ethiopia

Arbitration — Evidence — Burden of proof — Confidential material belonging to third party — International Committee of the Red Cross — Refusal to allow access to material — Eritrea–Ethiopia Claims Commission

Treaties — Succession — Whether Eritrea becoming party to the Geneva Conventions by succession on its secession from Ethiopia — Accession to Geneva Conventions — Date from which Conventions in force between Eritrea and Ethiopia

State succession — Treaties — Secession of one part of existing State — Whether new State becoming party to humanitarian treaties by succession