An interesting article appeared recently that challenges the established narrative that nuclear weapons are effective at preventing war. Among conflicts between states with nuclear weapons, it admittedly might have been effective, but at the huge risk of causing massive catastrophe to the human species. There are doubtlessly better methods at maintaining peace than keeping nukes though.
In any case, agree with the article’s basic premise or not, the world could at least drastically reduce its nuclear stockpile to reduce the risks of disaster. Also, in reference to ongoing wars, I would add that the World Peace Index notes that there are only a dozen or so countries that are “free from conflict.”
Second, deterrence requires that each side’s arsenal remains invulnerable to attack, or at least that such an attack would be prevented insofar as a potential victim retained a ‘second-strike’ retaliatory capability, sufficient to prevent such an attack in the first place. Over time, however, nuclear missiles have become increasingly accurate, raising concerns about the vulnerability of these weapons to a ‘counterforce’ strike. In brief, nuclear states are increasingly able to target their adversary’s nuclear weapons for destruction. In the perverse argot of deterrence theory, this is called counterforce vulnerability, with ‘vulnerability’ referring to the target’s nuclear weapons, not its population. The clearest outcome of increasingly accurate nuclear weapons and the ‘counterforce vulnerability’ component of deterrence theory is to increase the likelihood of a first strike, while also increasing the danger that a potential victim, fearing such an event, might be tempted to pre-empt with its own first strike. The resulting situation – in which each side perceives a possible advantage in striking first – is dangerously unstable.
Third, deterrence theory assumes optimal rationality on the part of decision-makers. It presumes that those with their fingers on the nuclear triggers are rational actors who will also remain calm and cognitively unimpaired under extremely stressful conditions. It also presumes that leaders will always retain control over their forces and that, moreover, they will always retain control over their emotions as well, making decisions based solely on a cool calculation of strategic costs and benefits. Deterrence theory maintains, in short, that each side will scare the pants off the other with the prospect of the most hideous, unimaginable consequences, and will then conduct itself with the utmost deliberate and precise rationality. Virtually everything known about human psychology suggests that this is absurd.