International organizations — Immunity — Whether international organization entitled to immunity in State which is not a member of organization — Whether organization has sovereign status — International Tin Council — Whether entitled to immunity under United States law — Foreign Sovereign Immunities Act — International Organizations Immunities Act — Immunity of International Tin Council under United Kingdom law — Whether comity requires recognition of that immunity by courts in the United States — International Tin Council-United Kingdom Headquarters Agreement, 1972 — International Tin Council (Immunities and Privileges) Order 1972 — Scope of immunity under United Kingdom law — Arbitration proceedings — Waiver of immunity — Whether act of State doctrine applicable to commercial contract between International Tin Council and New York corporation

Relationship of international law and municipal law — Act of State and justiciability — United States act of State doctrine — Whether applicable to commercial transactions — Whether applicable to acts of international organizations

Comity — Recognition of foreign laws required by comity — Whether comity requires courts in the United States to give effect to immunity accorded to international organization by United Kingdom law — Whether that immunity intended to have extraterritorial effect — The law of the United States