Examines the challenges of deterrence in an era of multipolarity, proliferation, and technological change, with a particular focus on nuclear weapons, the militarization of space and cyber warfare. Analyzes strategic planning and posture reviews and their consequences for deterring adversaries. Effective Fall 2020, this course fulfills a single unit in each of the following BU Hub areas: Oral and/or Signed Communication, Ethical Reasoning, Teamwork/Collaboration.