As the United States resets in the wake of previous security challenges and assesses future dangers, the risks posed by strategic hybrid threats deserve increased contemplation and deliberation. This article presents a new theoretical framework for addressing such, defining them as the product of principal-agent relationships in which intentions and capabilities are forged into novel hazards. Using Iran, the availability of likely proxies (notably Hizballah), and U.S. vulnerabilities to computer network attacks, the authors construct illustrative examples of how hybrid threats could threaten both the national security and national interests of the United States. They also offer a model (based on the concept of a war council) with which response efforts on the part of public and private sector actors at the local, state, and Federal levels of governance could be organized and managed