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NUCLEAR WEAPONS

A Bad Idea in Vietnam, an Even Worse Idea Today

A group of scientists concluded in 1966 that crossing the nuclear threshold would be disastrous in Southwest Asia. The same would be true in Iraq.

March 09, 2003|Peter Hayes and Nina Tannenwald | Peter Hayes is director of the Nautilus Institute, www.nautilus.org, where the JASON report can be viewed; Nina Tannenwald is an assistant research professor at the Watson Institute for International Studies, Brown University, and author of "The Nuclear Taboo: The United States and the Non-use of Nuclear Weapons Since 1945."

OAKLAND — Should the United States use nuclear weapons against rogue states and nonstate actors such as terrorists and insurgents? This question has been raised by the Bush administration in a variety of policy statements, including last year's Nuclear Posture Review, which ordered the Pentagon to draft contingency plans for using nuclear weapons against a number of countries, including Iraq.

But the question is not new. It was asked three decades ago, during the Vietnam War. As a recently declassified top-secret report from 1966 reveals, both the analysis conducted then and the answer -- a decisive no -- remain remarkably relevant.

After waiting 19 years to respond to a Freedom of Information Act request from the Nautilus Institute, the Pentagon has finally made its Vietnam-era study available to the American public.

The report grew out of an overheard remark. As the Vietnam War escalated in the spring of 1966, a high-ranking Pentagon official with access to President Johnson was heard by scientist Freeman Dyson to say, "It might be a good idea to toss in a nuke from time to time, just to keep the other side guessing."

Dyson and three other scientists -- Steven Weinberg, S. Courtenay Wright and Robert Gomer -- were so appalled by the remark that they undertook a systematic study of the utility of nuclear weapons in the Vietnam War. They were members of JASON, a group of elite scientific advisors to the Pentagon who spent two months each summer analyzing tough problems confronting the United States military.

Other officials involved in the JASON study confirm that there was recurring talk around the Pentagon that spring and summer about using tactical nuclear weapons to block passes between North Vietnam and Laos, especially the Mu Gia Pass, a key part of the Ho Chi Minh Trail -- the Viet Cong's primary supply route headed south.

The 55-page study analyzed the effects of using tactical nuclear weapons against a variety of targets, most in North Vietnam, as well as the likely political effects of a nuclear campaign. Although it eschewed any comment on the moral dimensions of using tactical nuclear weapons in Vietnam and focused primarily on military considerations, the report came to a strong conclusion: A nuclear attack on Vietnamese insurgents would "offer the U.S. no decisive military advantage." Rather, the political effects of such an attack "would be uniformly bad and could be catastrophic."

The report identified a number of targets against which, in principal, tactical nuclear weapons might be useful: bridges, airfields, missile sites, large troop concentrations, tunnel systems, Viet Cong bases in the South and urban-industrial targets such as ports and storage depots in the North.

The analysis of the scientists revealed numerous obstacles to the effective use of nuclear weapons. Often, it would be hard to find the targets. In many cases, there were more effective alternatives. In others, use of nuclear weapons would not substantially affect enemy operations. For example, the authors estimated that it would take 3,000 tactical nuclear weapons per year to interdict supply routes like the Ho Chi Minh Trail. Even then, damaged roads and trails could be relatively easily rerouted and cleared.

Most important, the study warned that a first use of nuclear weapons by the United States could lead China or the Soviet Union to provide Vietnamese fighters with tactical nuclear weapons. These weapons could be used with great effectiveness against U.S. forces concentrated in 14 large and "highly vulnerable" bases. In fact, U.S. targets were far more vulnerable to the effective use of nuclear weapons than were the smaller, relatively mobile and difficult-to-find enemy encampments.

What are the lessons of this analysis for today? Although its details are historically specific, its fundamental conclusions remain surprisingly valid.

The JASON report carefully examined the same motivation that today appears to be driving the Bush administration toward war with Iraq: the possibility that a state armed with weapons of mass destruction might transfer those weapons to nonstate actors willing to use state-scale terror. Despite Bush administration claims to the contrary, today, as in 1966, nuclear-armed states remain unlikely to supply rogue groups with nuclear weapons, because to do so could bring retaliation and possible annihilation of their leaders and populations.

In the context of the Vietnam War, the JASON report noted that the Viet Cong's backers -- China and the Soviet Union -- had little interest in supplying their communist insurgents with nuclear weapons for purposes of a first use. Chinese and Soviet leaders would either be self-deterred by the prospect of loss of control, or would be deterred by the prospect of U.S. retaliation.

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