New Books In National Security

Throughout the nuclear age, states have taken many different paths toward or away from nuclear weapons. These paths have been difficult to predict and cannot be explained simply by a stable or changing security environment. We can make sense of these paths by examining leaders' nuclear decisions. The political decisions state leaders make to accelerate or reverse progress toward nuclear weapons define each state's course. Whether or not a state ultimately acquires nuclear weapons depends to a large extent on those nuclear decisions. Nuclear Decisions: Changing the Course of Nuclear Weapons Programs (Oxford University Press, 2023) offers a novel theory of nuclear decision-making that identifies two mechanisms that shape leaders' understandings of the costs and benefits of their nuclear pursuits. The internal mechanism is the intervention of domestic experts in key scientific and military organizations. If the conditions are right, those experts may be able to influence a leader's nuclear decision-making. The e