Operation Allied Force was a key juncture for the normative thesis and NATO’s intervention has been used as a springboard for broader international advocacy and a basis for the normative critique of existing international law. While the invasion of Iraq generated more international debate and public interest, the intervention in Kosovo arguably constituted a more important juncture in post-Cold War international relations. As David Armstrong and Theo Farrell note,  The Kosovo case illustrated, perhaps even more starkly than the Iraq case, the tension between law and legitimacy in the use of force. It also clearly demonstrated the tensions within international law — in the case between, on the one hand, the non-intervention and non-use of force norms and on the other, norms of human rights. Arguably, Kosovo also revealed the crusading militancy of liberalism.1