The Legality of Weapons Transfers to Ukraine Under International Law

What is it about?

This article analyses the legality of Western states providing weapons to Ukraine. It focuses on five areas of international law: (1) the jus ad bellum; (2) the law of neutrality; (3) international humanitarian law; (4) state responsibility for complicity in internationally wrongful acts; and (5) international criminal law.

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Why is it important?

Weapons transfers are critically important to Ukraine's self-defence against Russia's aggression, but they raise difficult questions under international law. This article tries to explain those questions -- and answer them -- in an accessible way.