Vice Admiral (retd.) Vijay Shankar
Contemporary trends positing the reversibility of a nuclear exchange presupposes that the antagonists are able to understand mutual aims, objectives and have unimpeachable knowledge of boundaries within which the conflict is to be played out. In turn, these settings demand unambiguous appreciation of and total knowledge of decisions that will be taken by leadership on all sides. The act of trust that such a relationship rests upon is predicated upon crisis-proofed rapport. At any rate in such a velvet-lined relationship the question that begs to be asked is: why on earth did one of the parties take recourse to nuclear weapons in the first instance? Awkwardly this aberrant trend is gaining currency amongst states in possession of nuclear weapons.
A nation inducting tactical nuclear weapons into its arsenal will in fact have aligned its nuclear doctrine for first use, incentivised proliferation and blurred the lines between conventional and nuclear weapons; in turn, lowering the threshold of a nuclear response whose yield, magnitude and targets remain a choice made by the adversary. Delegation of authority to tactical commanders (which must follow) for release of low-yield nuclear weapons by nature of the tactical environment, runs the peril of being governed for deployment by principles more appropriate for conventional warfare. The posture indulges in the preposterous illusion that the adversary will discern between tactical and strategic yields and suitably moderate his response in the midst of a nuclear exchange, while desisting from escalating and retaliating in a manner of choosing. Irrationality of it all is that some States in possession of nuclear weapons have displayed a ready acceptance of nuclear war-fighting, rather than reconsider their nuclear doctrines, postures, and capabilities towards strategic deterrence. The latter ought to be the hallmark of an evolved nuclear system with seven decades of maturity in approach to its superintendence and of styling policy.
Today, the US counter to a Russian “escalate-to-deescalate” policy remains “to conduct nuclear strike operations below the strategic level.” All that such doctrines have ever done is to push adversaries into a perilous corner of uncertainty where alternatives to the nuclear trigger rapidly fade away. The French nuclear force de frappe and the British deterrent, both ‘declaredly’ independent, have neither abnegated First Use nor have they made any bones of targeting enemy value or population centres without ever disturbing themselves of the conditions of use, suggesting a certain heedlessness of policy.
As early as 1946, Bernard Brodie argued that “nuclear weapons were too powerful to use. Vastly more lethal than all previous arms, the grotesque scale of nuclear destruction overwhelmed any conceivable policy goal.” While the other school of thought, made up largely of the military and policy makers argued that nuclear weapons could be used like any weapon that was a product of technology. The latter school either deliberately, or for motivated reasons, chose not to reveal the scale and absoluteness of destruction that potentially could eclipse populations (both friend and foe) through blast, radiation, firestorms, fallout and the slower, yet assured death, of a nuclear winter. So, if nuclear weapons fail as instruments that win political objectives, then why is it that the logic that remains elusive to the mind of nuclear decision makers is that a nuclear exchange cannot be the accepted normal.
The Cuban missile crisis of October 1962 drew the two superpowers to the nuclear brink and the hapless rest-of-the-world closer to mass calamity. Inexorably, through a train of uncontrolled political and military actions beginning with induction into Cuba of over 40,000 Soviet troops armed with pre-delegated tactical nuclear weapons in addition to surface-to-air-missiles and nuclear tipped ballistic missiles; the US naval blockade; downing of an American U2 reconnaissance aircraft; action against Soviet submarines poised to release nuclear weapons to the ready amphibious force threatening invasion of Cuba, each event bringing closer nuclear conflict. Today, analysts and records of participants suggest that the chance of a nuclear conflagration was extremely high as blunders followed miscalculations. That a nuclear exchange did not occur is what remains remarkable. The improbable factor that drove strategic decision making was: nature of leadership image being projected to alliance partners and loss of face rather than hard political considerations and their baneful consequences. The perceived timidity of Kennedy versus Khrushchev’s boldness in the backdrop of the Berlin stand-off and the incentive the latter saw in Cuba to not just redress the strategic balance of power, but also to tighten Soviet hold on that nation. Significantly, throughout the crisis the inability to either control or recognise the impact and hazards of escalation was pivotal to precipitating the crisis. As the then Secretary for Defence, McNamara put it rather obscurely 30 years later “No one should believe that a US force could have been attacked by tactical nuclear warheads without responding with nuclear warheads. And where would it have ended? In utter disaster.”
Pakistan and North Korea are two states that have a adopted a policy that challenges common sense; both possess strategic nuclear weapons with a doctrine that blurs the lines between the nuclear and the conventional and advocates nuclear war fighting, neither have abjured First Use nor have they made any moves to proscribe tactical nuclear weapons. From a policy point of view such a protocol strikes a discordant note at a time when efforts to avert a nuclear exchange or at least make improbable an exchange, ought to be the norm.
We have, in the eighth decade of the evolution of strategic nuclear systems, come to the perspective that a first step to preventing a nuclear exchange is necessarily a universal declaration of “No Use” (a No First Use doctrine such as China and India’s, unfortunately, remains a halfway house). None of the states in possession of nuclear weapon have enunciated a strategic doctrine that is both mutually credible and acceptable, making such policy catastrophic if implemented. Experience today confirms that the danger of mass nuclear destruction does not rest even partly on proliferation to non-state and rogue actors, but squarely on the shoulders of leadership whose doctrines of use represent an enduring danger to humanity.