Foreign Sovereign Immunity

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 Reading

Recent Posts

DOJ Argues Against Turnover of Argentina’s Assets

On November 6, 2024, the U.S. Attorney for the Southern District of New York sent a letter to Judge Loretta A. Preska arguing against turnover of Argentina’s interests in YPF S.A., a state-owned energy company, to satisfy a breach of contract judgment. The $16.1 billion judgment in Petersen Energia Inversora, S.A.U. v. Argentine Republic arose…

Continue Reading

What Deference to the Executive in Halkbank Should Have Looked Like

As previously reported, the Second Circuit issued its opinion in United States v. Turkiye Halk Bankasi (Halkbank) on October 22, 2024, addressing the deference owed to the executive branch’s determination that Halkbank, a Turkish state-owned bank, is not immune from criminal prosecution for violating U.S. sanctions on Iran. Similar questions of deference to the executive…

Continue Reading

Halkbank and the “Unitary” Executive

Last week, the Second Circuit issued its decision on common law immunity in United States v. Turkiye Halk Bankasi A.S., on remand from the Supreme Court. Ingrid thoroughly summarized the Second Circuit’s ruling earlier this week. This post follows up to flag one further aspect of the decision. As readers know, a central question on…

Continue Reading