Cross-Domain Deterrence in American Foreign Policy

Abstract

This chapter assesses the role of cross-domain deterrence in recent American foreign policy. Cross-domain deterrence is not a new phenomenon, even if our consciousness of it may be. Prominent cases from the Cold War, such as the Korean War and the Cuban Missile Crisis, can be interpreted through the lens of cross-domain deterrence and fruitfully compared with more contemporary cases, such as the Stuxnet attack on Iran. These cases illustrate the variation across domains by the adversary and U.S. responses. Considered together, the United States generally responded to these crises by initially limiting itself to the domain where a crisis started and only later expanding into other domains. The United States has typically been cautious when shifting domains and has tried to escalate in ways that would not produce adversarial retaliation.