, Volume 85, Number 3

Steven Haines

Some have argued that NATO's air campaign against Serbia in 1999 was manifestly unlawful, others that it was an entirely legitimate humanitarian intervention. A third position suggests that the intervention while unlawful, in the strictest sense, was nonetheless legitimate. Here, a customary law right to intervene was seen as emerging, permitting action to prevent a mass atrocity crime, even when UN Security Council authorization was absent. Did Operation Allied Force, then, add to the case for the emergence of this new customary norm?

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