Customary international law provides immunity to states from the jurisdiction of foreign national courts. The immunity extends to state agencies and to state-owned property, protecting them from adjudicatory jurisdiction and from enforcement measures. Foreign sovereign immunity has important exceptions, including for waiver, for some conduct or property related to commercial activity, and for some torts committed on the territory of the forum state. In the United States, all aspects of foreign sovereign immunity for cases in state or federal court are governed by a federal statute, the Foreign Sovereign Immunities Act.
A Primer on Foreign Sovereign Immunity
The immunity of states from the jurisdiction of foreign domestic courts is a long-standing and mostly uncontroversial principle of customary international law. The International Court of Justice has described foreign sovereign immunity as a procedural doctrine of international law, one that “derives from the principle of sovereign equality of the States.” As a practical matter,…
Continue ReadingThe $24 Billion Judgment Against China in Missouri’s COVID Suit
On March 7, 2025, Judge Stephen N. Limbaugh, Jr. (Eastern District of Missouri) entered a default judgment for more than $24 billion against the People’s Republic of China and eight other Chinese defendants for hoarding personal protective equipment (PPE) during the early days of the COVID pandemic in violation of federal and state antitrust laws….
Continue ReadingImmunity or Not? The English Court of Appeal Decides
In the United Kingdom, § 2 of the State Immunity Act 1978 (SIA) provides an exception to State immunity if a State has “submitted” to the jurisdiction of UK domestic courts. In a 2024 decision, the English Court of Appeal considered whether, under § 2 of the SIA, a State’s adoption of the Convention on the Settlement…
Continue ReadingSupreme Court Narrows the FSIA’s Expropriation Exception (Again)
(Editor’s Note: This article also appears in Just Security.) Last Friday, the U.S. Supreme Court decided Republic of Hungary v. Simon. Writing for a unanimous Court, Justice Sonia Sotomayor held that commingling the proceeds of expropriated property with other government funds, which are then used for commercial activity in the United States, is not enough…
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