Jurisdiction — Justiciability — Non-justiciability — Abstention of English courts from adjudicating on transactions of foreign States — Interpretation of unincorporated treaties beyond the interpretative jurisdiction of English courts — Exceptions — Protective measures to maintain status quo

Relationship of international law and municipal law — Act of State — Justiciability — Dismemberment of States — Rights, obligations, liabilities and assets of successor States — Dismemberment of Socialist Federal Republic of Yugoslavia — Agreement on Succession Issues, 2001 — Justiciability in English courts

State succession — Dissolution of States — Dismemberment of Socialist Federal Republic of Yugoslavia — Successor States — Succession to assets and liabilities of SFRY — Whether justiciable in English court — The law of England