Iran-United States Claims Tribunal, Case No. A/18

After Iranian militants took U.S. hostages following the 1979 revolution, the United States blocked Iranian assets and U.S. claimants sued Iran and attached blocked assets; the dispute was resolved in 1981 through Algeria-brokered Algiers Accords, which freed the hostages, returned certain assets, and created an arbitral tribunal in The Hague, governed by a Claims Settlement Declaration, to hear claims between the two states and their nationals. A dispute arose over whether the tribunal had jurisdiction over claims filed by people who, under each country's own laws, were citizens of both Iran and the United States during the relevant period.