Preventive war and permissive normative order

Following the terrorist attacks of September 11, 2001, U.S. president George W. Bush articulated a new national security strategy based on striking terrorist organizations and the states that harbor them before they could endanger the United States. Though expressed in the language of preemption, the Bush strategy embodied a far more problematic doctrine of preventive warfare. Whereas the grounds for preemption lie in evidence of a credible, imminent threat, the basis for prevention rests on the suspicion of an incipient, contingent threat. We argue that an American national security strategy that embraces preventive war will set an inauspicious precedent, undermining normative restraints on when and how states may use military force.