Deterrence: hope and reality

M V Ramana

The Daily Times
Thursday, October 4, 2002

One of the arguments the peace movement is continuously confronted with is that the reason why “we” — where the “we” could be India, Pakistan, or the United States — should have nuclear weapons is that others have it. It almost seems like an argument about why one should buy a television or a washing machine — because the neighbour has it. One could, of course, retort with “if they decide to jump into a well, should we also do it?” And there is a lot of wisdom in that: it is foolish to invest in anything without examining the utility of it, be it a television or a nuclear arsenal.

But what people usually have in mind when they point to the neighbour’s possession of nuclear weapons is the standard justification: “we” need it to protect ourselves against attack by the “other”. Well, one goes on, how does it protect “us” if the other country does launch a nuclear weapon at “us”. The stock answer one gets is that just because “we” have nuclear weapons, no one would attack “us”. This, in its essence, is what the theory of deterrence is all about. It seems almost common sense.

Indeed, Kenneth Waltz, a prominent international relations theorist and a strong proponent of nuclear deterrence, goes so far as to complain “deterrence is not a theory...a little reasoning leads to the conclusions that to fight nuclear wars is all but impossible and that to launch an offensive that might prompt nuclear retaliation is obvious folly. To reach those conclusions, complicated calculations are not required, only a little common sense.”

Unfortunately common sense does not always suffice to understand the world in all its complexity. One needs the good sense that comes from careful and critical observation. And when one does observe in that manner, it is apparent that states — the creatures whose behaviour is supposedly governed by realist international theories — do not operate according to Waltz’s notions of what constitutes common sense.

Deterrence for all its pretensions of being merely common sense is just a theory. And one can test it by comparing its predictions with actual behaviour in various nuclear weapon states. After all, that is the process by which scientific theories are tested. Unfortunately the results of such tests often put the theory in poor light.

For example, in his famous debate with Scott Sagan, The Spread of Nuclear Weapons, Waltz forecasts that the “possession of nuclear weapons may slow arms races down, rather than speed them up.” According to his reasoning in a relationship dominated by the logic of deterrence, “no state can launch a disarming attack with high confidence, force comparisons are irrelevant. Strategic arms races are then pointless.”

Strategic arms races are indeed pointless. On that there can be no question. But it is also true that they occur. The most obvious examples are the US and the Soviet Union who piled up more than seventy thousand nuclear weapons between them. Waltz makes a bow in that direction by admitting, “[human] error and folly may lead some parties involved in deterrent balances to spend more on armaments than is needed, but other parties need not increase their armaments in response, because such excess spending does not threaten them.” And yet the Soviet Union spent so much on armaments that it finally went bust. The “need-not” does not translate to “do-not”; there is gap between theoretical predictions and real-life occurrences.

Waltz also adds, “the interesting question is...whether countries having strategic nuclear weapons can avoid running conventional [arms] races.” And he goes on to answer it by pointing out that “large conventional forces neither add to nor subtract from the credibility of second-strike nuclear forces. Smaller nuclear states are more likely to understand this more easily than the United States and the Soviet Union did, if only because few of them can afford to combine deterrent with large war-fighting forces.”

This is a point many South Asian nuclear strategists had also made prior to May 1998: nuclear weapons were to be made and tested because they would help India and Pakistan avoid wars and lower their conventional military expenditure. In poor countries, such an argument has some appeal. But after 1998, and especially after Kargil, we have Indian Defence Minister George Fernandes pronouncing that the nuclear tests “simply imposed another dimension on the way warfare could be conducted”. Under his leadership, the Indian defence ministry got huge budget increases (the 2000-2001 budget increase was termed the “biggest ever” by the finance ministry) and proceeded on a huge arms buying spree. Pakistan, to the extent it could, has matched this in its own way.

Clearly India and Pakistan do not seem to be following Waltz’s predictions or his advice. For that matter, the Kargil war also violates another cardinal tenet of deterrence theory, i.e., nuclear weapon states do not go to war with each other.

With their enormous destructive capability, nuclear weapons do not allow us the luxury of putting our faith in dubious theories. The final frontier, so to say, is the most basic prediction of deterrence theory — that nuclear weapon states will not use nuclear weapons against each other. The dilemma is that even if one disagrees with or disbelieves the theory, one does not want to have this be demonstrated as false. But as we come closer to the abyss with each military crisis, deterrence increasingly seems to be, as Zia Mian put it, “hope masquerading as strategy”.
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