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The Prohibition Of The Use Of Force, Mary O'Connell

Book Chapters

This chapter concerns the central international legal rule against violence: Article 2(4) of the United Nations Charter. Article 2(4) generally prohibits the use of force by states. It is a treaty rule that is also widely regarded as a rule of customary international law and, indeed, in certain respects, as a peremptory rule or rule of jus cogens. Article 2(4) was adopted along with the rest of the Charter in 1945 after the catastrophe of the Second World War in which an estimated 60 million people died. Despite its relatively recent adoption, Article 2(4) has ancient roots, dating back …