摘要:The US debate about nuclear forces and policy often descends into arcane details. These details can be important, but it also is important to address a basic question: For effective deterrence, does the United States need greater numbers and different types of nuclear capabilities than the very limited numbers and types of nuclear weapons deemed necessary to threaten an opponent’s society? While it appears incongruous, a minimum US nuclear deterrent typically is defined as a second-strike, or retaliatory, capability sufficient to threaten the destruction of an opponent’s societal or urban/industrial assets, such as “a nation’s modern economy, for example, electrical, oil, and energy nodes, [or] transportation hubs.”1.