Barry Zellen’s dissertation examines the evolution of the strategic theories of Bernard Brodie, a pioneering theorist of nuclear deterrence. Best known for his work on nuclear deterrence, Brodie was also a prominent neo-Clausewitzian who tirelessly worked to introduce post-World War II civilian and military scholars to the ideas of the 19th century Prussian theorist of war. Zellen’s thesis explores Brodie’s evolution as a theorist, and his response to the many military-technological innovations that transformed warfare, from the global conflict of World War II through the more limited wars waged in Korea and Vietnam. Brodie’s ideas on nuclear deterrence would help to shape America’s preparations for nuclear war as well as its efforts to avoid such a mutually destructive cataclysm.