Deterrence or danger?

India does not gain anything by escalating the nuclear arms race in the region with INS Arihant The indigenous nuclear submarine, INS Arihant ( picture ), is a great achievement for India. The Indian Navy, its engineers and scientists have done us immensely proud. But it might not be inappropriate to ask: Will Arihant make us more secure, and if so, in what way? It has been universally recognised that the sole justification for having nuclear weapons is their deterrence value. If ever a nuclear bomb has to be used, it has destroyed its raison d’être. The initiation of a nuclear attack would mean utter destruction, not just for the two parties involved but also for regions far beyond. The Americans got away with their bombing of Hiroshima and Nagasaki, however controversial it was, because they had a monopoly of nukes at the time. Today, the situation is vastly different and far more dangerous. If nuclear weapons fail to deter the outbreak of war involving use of such weapons, they have disastrously failed in their deterrence mission. A nuclear triad The major nuclear weapon powers, principally the U.S., have developed the myth of a nuclear triad, that consists of land-based, air-based and sea-based nuclear delivery systems. The theory is that if country A initiates a nuclear attack on country B in a first strike, country B must be in a position, even after absorbing the nuclear strike, to retaliate with a massive nuclear attack on the enemy country. This is called second strike capability. In the event that country A manages to destroy the land and air-based nukes of country B, country B will still have its third leg in the shape of sea-based nuclear-tipped missiles, called SLBMs or submarine-launched ballistic missiles, for use against country A because the sea-based missiles, launched from nuclear-powered submarines, would have remained undetected and hence safe from enemy attack. Thus, the rationale for the naval leg of the triad is its survivability. Essentially, the argument in favour of the naval leg is not that it makes the deterrent more credible, but that, as mentioned above, it will survive for retaliation. In the event that an enemy initiates a nuclear strike, it will never be able to destroy all the land and air-based nuclear weapons of the target country. Again, the enemy might attack population centres and not nuclear weapon sites; in that case, all the nukes of the target country would be available for retaliation. In either case, the deterrence capability of the target country would remain intact. If the possession of the naval leg were to deter the enemy, ab initio, from initiating a nuclear launch, it would add to the deterrence value. Survivability by itself does not appear to make deterrence more credible. If the hostilities reach the threshold where a country may consider using nuclear weapons, it would be preceded by a period of conventional warfare. The enemy would also have to reach the conclusion that unless he uses his nuclear weapons, he would suffer a defeat that he simply cannot afford to let happen. A conventional conflict itself will not start before several days of negotiations, including possible mediation by external powers and the UN Security Council. Even a small incident involving India and Pakistan would immediately invite big powers to rush in and mediate pull-back of forces, etc. Whether the external interventions succeed or not in preventing a major war, the target country would have ample time to disperse its land and air-based nuclear assets. The naval leg does not seem indispensable.

Source : https://www.thehindu.com/todays-paper/tp-opinion/deterrence-or-danger/article25894521.ece

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