Cybersecurity & Tech Foreign Relations & International Law

Intentional Damage to Submarine Cable Systems by States

Tara Davenport
Wednesday, October 25, 2023, 11:53 PM
Two legal regimes—the law of the sea and the law on the use of force—can apply to damage caused by states to submarine cables during peacetime.
Construction Mechanic Second Class David Power checks the cable wrap on a section of damaged underwater cable off Kauai, Hawaii. (The U.S. National Archives, https://tinyurl.com/mfed8fv8; Public Domain, https://creativecommons.org/public-domain/)

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Submarine fiber optic cables carry 99 percent of all transoceanic digital communication. The 2022 attack on the Nord Stream pipeline and other recent developments have highlighted the vulnerability of undersea critical infrastructure. This paper examines two different legal regimes—the law of the sea and the law on the use of force—to ascertain the extent to which each applies to damage caused by states to submarine cables during peacetime. 

You can read the essay here or below:


Dr. Tara Davenport is an assistant professor on the Faculty of Law, National University of Singapore, where she coheads the Ocean Law and Policy Team at the Centre for International Law. She is also deputy director of the Asia-Pacific Centre for Environmental Law and co-rapporteur of the International Law Association’s Committee on Submarine Cables and Pipelines.

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