Self Defence

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Two nodes of interaction between AI and the obligation to respect state sovereignty

Artificial intelligence (AI) is interacting in ever more complex ways with the sovereignty of states. On the one hand, AI technologies are beginning to underpin key sectors and services, including national security, the economy, healthcare. Consequently – and unsurprisingly – states are seeking to protect AI capabilities and the data infrastructure they rely on. The UK, for instance, designated data centres as critical national infrastructure in 2024 and is planning to designate them as essential services. Such designations play an important role in domestic law – imposing, among others, obligations of risk mitigation and notification on operators of designated infrastructure. These designations may also play a role under international law. Considering AI tools and infrastructure as critical infrastructure or an essential service may affect the application of obligations deriving from state sovereignty.

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Two(ish) Weeks in Review: 6 April—1 May 2026

In a slightly extended version of Two Weeks in Review, we take in fundamental questions about what happens when law and lawyers seek or refuse to justify illegal actions, “relocation orders” issued by Israel in Gaza and Lebanon, the closing of the Strait of Hormuz, Australian soldiers and Belgian consular officials in domestic courts for international crimes, the…

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On Violence: Self-Defence to Self-Determination in International Law

There are moments when the international legal order reveals itself not through its rules but through the violence done in its name. Today’s expanding doctrine of self-defence—invoked with increasing ease, justified with decreasing care—is one such moment. It is tempting to read this as an unravelling, a slide into disorder. Yet what is unravelling here is not only…

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The Legality of the UK Permitting the US to Use British Bases to Stop Iranian Attacks on Shipping in the Strait of Hormuz

Yesterday, the UK Government announced a significant change in its policy of allowing the United States to use British military bases during its war on Iran, solely to stop Iranian attacks on countries in the Gulf – I previously examined that issue here, and there was also an extensive discussion in the comments…

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U.S.’s moves to label Brazilian crime syndicates as “terrorist organizations”: a prelude to the use of force?

On March 6th, 2026, the United States re-ignited their pressure on Brazil to designate two major Brazilian crime syndicates, PCC (Primeiro Comando da Capital) and Comando Vermelho, as “terrorist organizations”. In this post, I will introduce the U.S. practice to label Latin American drug syndicates “terrorist organizations”, and outline how this raises issues in relation…

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