THE CANBERRA COMMISSION ON THE ELIMINATION OF NUCLEAR WEAPONS
(Part One) The Nuclear Weapon Debate
The Canberra Commission is persuaded that immediate and
determined efforts need to be made to rid the world of nuclear
weapons and the threat they pose to it. The Commission
acknowledges that the debate between those for and against the
elimination of nuclear weapons is not new. Both sides claim
that their positions are rational and moral. But the
circumstances that created and sustained the nuclear arms race
of the Cold War have all but disappeared, and an uncertain
global strategic future lies ahead. This uniquely favourable
moment should be seized to eliminate the class of weapons
which, alone, can destroy all life on earth. The Commission
believes that to be compelling, the case for a nuclear weapon
free world must be convincingly argued from two sides of the
issue: why these weapons should be eliminated; and a rebuttal
of the rationale most commonly cited for retaining them.
Simultaneously the security concerns of the present day
including, in particular, nuclear proliferation must be
addressed. The Case for a Nuclear Weapon Free World The case
for elimination of nuclear weapons is based on three major
arguments:
- * The destructiveness of nuclear weapons is so great they have
no military utility against a comparably equipped opponent,
other than the belief that they deter that opponent from using
nuclear weapons. Use of the weapons against a non-nuclear
weapon opponent is politically and morally indefensible.
- * The indefinite deployment of the weapons carries a high risk
of their ultimate use through accident or inadvertence.
- * The possession of the weapons by some states stimulates
other nations to acquire them, reducing the security of all.
The destructive power of nuclear weapons dwarfs that of any
conventional weapon or non-nuclear weapon of mass destruction.
More energy can be released in one micro-second from a single
nuclear weapon than all the energy released by conventional
weapons used in all wars throughout history. The atomic bombs
detonated over Hiroshima and Nagasaki in August 1945, while by
today's standards of relatively low yield, in a matter of
seconds erased both cities. In 1945 nuclear weapons became a
new part of the international context and the world had to
cope as best it could with a radically changed calculus of
national and international security.
No theoretical calculation of the damage can give a true
picture of the consequences of nuclear warfare. The explosion
of a nuclear weapon causes damage through intense thermal
radiation, a blast wave and nuclear radiation from the
fireball and radioactive fallout. The effects of a major
exchange of nuclear weapons, or even a more limited exchange,
would not be confined to those states directly involved in a
nuclear conflict. On the contrary, the consequences of nuclear
war would stretch beyond the immediate destruction, and into
non-belligerent states and the lives of future generations,
through fallout, widespread contamination of the environment
and possible genetic damage. The survivors of a major nuclear
war would face extraordinary difficulties, especially in
reconstruction, and the restoration of domestic and
international order. In the case of the two world wars the
most powerful states were engaged in prolonged combat, but the
international system survived, though at a terrible cost, and
the resulting physical damage was repaired relatively quickly.
A major nuclear war or exchange would make this sort of
recovery immensely difficult and for some perhaps impossible.
The world has lived under the shadow of the mushroom cloud
continuously since 1945, and the cumulative psychological
impact has been overwhelmingly negative. The threat that the
existence of nuclear weapons poses to the future of the human
species and the global environment remains undiminished. It
must not be ignored or forgotten by the international
community. The initial development and proliferation of
nuclear weapons meant that, for the first time in history, the
fate of humankind was delivered into the hands of a small
group of leaders and decision makers. An unprecedented
responsibility was placed on those controlling the deployment,
use and maintenance of nuclear weapons. That is still the
case. With the end of the Cold War, the risk that nuclear
weapons might be used deliberately by a major power in a
global war has lessened, but other dangers must also be
considered. Foremost among these are the risks that nuclear
weapons can be detonated accidentally, used as a result of
strategic miscalculation during a crisis or used in an
unauthorised way by those with access to the weapons, leading
to further escalation and the retaliatory use of nuclear
weapons. The complexity of the command, control, communication
and early warning systems associated with nuclear weapons,
coupled with the speed with which nuclear weapons can be
delivered, creates a broad environment for such accidental or
miscalculated use. In the 1960s, the world looked at the
prospect of dozens of nuclear weapon states, recoiled and
rejected it. The result was the Treaty on the
Non-Proliferation of Nuclear Weapons (NPT) of 1968 with its
promise of a world free of these weapons. The overall success
of the NPT and other nuclear non-proliferation regimes has
been gratifying, but it has been hard won, and is by no means
guaranteed. The prospects of a renewal of horizontal
proliferation have become real.
In parallel with the risks associated with the nuclear
arsenals in the five declared nuclear weapon states, there
are the dangers of undeclared nuclear arsenals. The states
concerned have neither articulated the doctrines supporting
their nuclear forces, nor is anything known of the
arrangements they have in place to ensure the non-use of these
weapons. These states must be urged strongly to adhere to the
NPT or other equivalent non-proliferation obligations as
non-nuclear weapon states. Equally the acquisition of nuclear
weapons or material by terrorists or other sub-national groups
is a matter of grave concern.
During the Cold War, American and Soviet strategic nuclear
forces were designed to cope with sudden attack, not least by
keeping large portions of their forces on alert and ready to
strike on the shortest notice. Although the forces were
structured to be able to ride out a first nuclear strike, they
also had 'launch-on-warning' or 'launch-under-attack' options,
choices that would have to be exercised after no more than a
few minutes of deliberation. The need for such a prompt
response had grave drawbacks: information on the scale and
nature of the attack might be unclear and difficult to verify
in the minutes available. The recommended response might
compound the disaster or, worse, the early warning systems
might be wrong. False alarms have occurred, although never in
the midst of a severe crisis. The profound anxiety and
uncertainties imposed on advisers and decision makers under
this scenario, faced as they would be with the imminent
destruction of their society and the loss of a significant
fraction of their retaliatory forces, invoke a powerful
predisposition toward the option to 'launch-on-warning' or
'launch-under-attack'. The acute urgency of the circumstances,
and the logic of inflicting severe retaliatory damage, posed
the real likelihood that a nuclear first strike of any
significant size would trigger a massive response, despite the
availability of an array of graduated response options.
Elaborate theories of escalation control and 'intra-war
bargaining' notwithstanding, the fatal flaw of strategic
nuclear deterrence is that if it fails, it will do so with
catastrophic consequences.
The continuing practice of maintaining nuclear weapons systems
on high states of alert also increases the danger of
accidental detonation, if only from the handling of nuclear
weapons and their components which such postures entail.
Servicing complex systems on alert 24 hours a day, year in and
year out, requires elaborate planning and organisation. It
demands tight discipline and continuous judgements at the
margin between the requirements of safety and responsiveness.
Certainly, elaborate technologies were developed to try to
preclude the accidental or unauthorised launch of a delivery
vehicle or the detonation of the warheads it carried. The
success of these measures over five decades is a credit to
those who managed and maintained the weapons systems. But
accidents did occur. During the period from 1945 to 1980,
about 100 accidents were reported which damaged nuclear
weapons and could have caused unintended detonation. A number
of serious accidents involving United States airborne alert
forces prompted the termination of this practice, although
plans permit its reinstatement in a period of acute crisis.
The US decision in 1991 to terminate entirely the 30 year
practice of maintaining a portion of its strategic bomber
force on peacetime alert further reduced the exposure of these
unsheltered forces to the likelihood of accident or deliberate
damage. However salutary these steps to reduce alert levels,
and despite the transformation of relations between the United
States and Russia, the fact remains that both of these states,
and other nuclear weapon states, maintain thousands of nuclear
warheads on continuous alert. This perpetuation of the most
overly hostile and risky aspects of the Cold War defies logic.
It needlessly prolongs an atmosphere of mistrust and the
potential for accidents. It is entirely out of keeping with
the urgent interest of fully integrating Russia into the
institutions and norms of a global community moving rapidly
toward democratic government and free and open markets. The
end of the bipolar confrontation has by no means removed the
danger of nuclear catastrophe. In some respects the risk of
use by accident or miscalculation has actually increased.
Political upheaval or the weakening of state authority in a
nuclear weapon state could cripple existing systems for
ensuring the safe handling and control of nuclear weapons and
weapons material, increasing the odds of a calamity. The same
fate could befall other states or sub-state groups with a less
developed nuclear weapon capability or those that seek to
develop such a capability in the future.
The proposition that large numbers of nuclear weapons can be
retained in perpetuity and never used - accidentally or
by decision - defies credibility. The fact that nuclear
weapons have not been used since 1945 is a great relief but
provides little comfort. The United States and the former
Soviet Union came perilously close to outright nuclear war
during the Cuban missile crisis. It is highly doubtful that a
full accounting has been made of accidents and incidents
involving nuclear weapons since their introduction over 50
years ago. And present and prospective nuclear weapon states
have yet to resolve the inherent contradiction of nuclear
deterrence: that forces should be postured to convey a
credible capability of use, but they should not at the same
time provoke countervailing reactions that lead to expanded
arsenals, crisis instability and mounting consequences should
deterrence fail.
Limited Military Utility Nuclear weapons have long been understood to be too
destructive and non-discriminatory to secure discrete
objectives on the battlefield. They came increasingly to be
regarded as weapons to be employed only in extremis, and then
with the dismaying knowledge that the ensuing consequences
would obviate whatever military or political objective
prompted their use. As early as the 1970s, under the
provisions of the Strategic Arms Limitation Treaties (SALT)
and subsequently according to the obligations of the Strategic
Arms Reduction Treaties (START), the United States and Russia
began to constrain and reduce the capabilities and size of
their strategic forces. In addition, they began to reduce the
dangers of tactical nuclear weapons. These weapons have been
largely withdrawn from overseas deployment and removed from
ships and sea-based aircraft to stockpiles on their own
territory.
Even at the height of the Cold War, the ostensible use of
tactical or battlefield nuclear weapons to prevail against a
conventional attack- the 'flexible response' strategy
- never satisfied the conflicting concerns of NATO allies
nor was perceived as guaranteeing either a controllable
nuclear exchange or ensuring an automatic link to United
States strategic nuclear forces. Indeed, whether nuclear
weapons were the decisive factor in or superfluous to the
deterring of Warsaw Pact aggression against Western Europe has
been a matter of contention for some time. What is clear,
however, is that possession of nuclear weapons has not
prevented wars, in various regions, which directly or
indirectly involve the major powers. They were deemed
unsuitable for use even when those powers suffered humiliating
military setbacks (as in Korea) and, ultimately, defeat (as in
Vietnam and Afghanistan).
The asserted necessity, much less the utility of nuclear
weapons, of whatever yield, to deter use of such
terror-inspiring devices as chemical or biological weapons, is
also greatly overstated. Moreover, the advisability of such
use is profoundly suspect. To the first point, the nuclear
weapon states have such an overwhelming strength in military
and civilian technology that a combination of defensive
measures and advanced conventional forces can deter or
powerfully retaliate against chemical or biological weapon
threats. States with less conventional capability than the
nuclear weapon states would likely find nuclear weapons highly
impractical to deter attacks or threats from their neighbours,
from many standpoints. But the cost of developing even a
rudimentary capability would be extremely high and selecting
an appropriate target for retaliation would be difficult. The
consequences of nuclear retaliation are so disproportionate
and uncertain as to render this option at best implausible and
at worst self-defeating. The most appropriate course for
dealing with chemical or biological weapon threats is for the
world community, and most especially the nuclear weapon
states, to press ahead with chemical and biological
disarmament.
The nuclear weapon states, through negative security
assurances and other multilateral commitments, have already
placed sharp limits on the utility of their nuclear weapons in
respect to the non-nuclear weapon states. Further, these
weapons have no feasible role in deterring terrorists or
sub-state groups armed with nuclear weapons or other weapons
of mass destruction. Most importantly, apart from their highly
constrained military utility, the use of any type of nuclear
weapon, of any yield, would irretrievably diminish, if not
destroy, the vitally important threshold or firebreak between
nuclear and non-nuclear weapons that has been so carefully
sustained by all states since 1945. It would thereby raise the
grim prospect of a world of enmities, of states armed to the
teeth with nuclear weapons and of wide acceptance of the
consequences of their employment.
Over the period of the Cold War, deterrence proved to be an
open- ended, highly risky and very expensive strategy for
dealing with the reality of nuclear weapons in a world of
nation states with enduring, deep-seated animosities.
Conversely, given the origins and peculiar ideological
character of the East-West conflict, the extreme alienation of
the principal antagonists, the vast infrastructures put in
place and the sense of imminent, mortal danger on both sides,
deterrence may have served to at least introduce a critical
caution in superpower relationships. Whatever the final
judgement may be with respect to this era of unprecedented
threats and risks, in the post-Cold War environment, the
argument for deterrence is largely circular. Its utility
implies and indeed flows from an assumption of the continued
existence of nuclear weapons, but in a world of dramatically
reduced global tensions. The only military utility that
remains for nuclear weapons is in deterring their use by
others. That utility implies the continued existence of
nuclear weapons. It would disappear if nuclear weapons were
eliminated.
Reversing Nuclear Proliferation
The proliferation of nuclear weapons is amongst the most
immediate security challenges facing the international
community. It is a palpable threat to the security of both
nuclear weapon states and non-nuclear weapon states. The
inherent risks attending the possession of nuclear weapons as
recounted above can only multiply should the possession of
nuclear weapons expand.
There is as much cause for alarm as there is for satisfaction
regarding the record to date. Despite the impact of the
international nuclear non- proliferation regime, the
disconcerting reality is that several states have made, and
some continue to make, clandestine efforts to develop nuclear
arsenals. Indeed, the world may well find itself at a crucial
juncture with respect to the future course of proliferation.
Should the ranks of declared or undeclared states grow by even
one beyond the present roster of known or widely presumed
members, the risk of a new chain reaction of proliferation is
substantial. Some argue that it is precisely because of this
possibility that major powers such as the United States must
retain nuclear weapons in perpetuity. Such logic turns the
singular role of the major nuclear powers in the arms control
arena on its head. The undeniable truth is that these powers
collectively, and the United States in particular, govern the
pace, possibilities and prospects for nuclear arms
limitations, reductions and elimination. Should they elect to
preserve their arsenals, over time other states will acquire
nuclear capabilities. But, should they make an unequivocal and
demonstrated commitment to shrink and ultimately eliminate
their nuclear arsenals, over time they will establish a global
norm for honouring this obligation. It is false to claim that
the world has traversed successfully the most dangerous phase
of the nuclear era and is now on the path to modest, passively
deployed nuclear forces that will deliver the asserted
benefits of deterrence at much reduced risk - the
so-called 'low-salience nuclear world'. Such confidence is out
of keeping with the unhappy reality that even if START II is
fully implemented, the United States and Russia in 2003 will
still have a large stock of tactical nuclear warheads and a
combined strategic nuclear arsenal of around 7000 operational
warheads. Beyond even this enormous residual capability, they
will likely retain a substantial reserve not accountable under
the agreement. And, of course, the forces of the other three
nuclear weapon states remain outside of any reduction
agreement, and thus will remain unconstrained. Under these
circumstances, there is no assurance whatever that a
low-salience nuclear world can ever be achieved or sustained,
especially as the number of actors multiplies. Nuclear forces
by their mere existence will have high salience.
The possible acquisition by terrorist groups of nuclear
weapons or material is a growing threat to the international
community. It adds a disturbing new dimension to the more well
established concern about proliferation among states. During
the Cold War, the most probable targets of nuclear attack were
the nuclear weapon states themselves who targeted each others'
military installations and even cities. Today, the possible
acquisition of nuclear weapons or material, including by
terrorist and sub-state groups, has become a serious threat to
the international community. Even the most powerful country in
the world, the United States, is now vulnerable to such
threats. In the absence of extremely tight controls, the
development of an already significant illegal trade in fissile
material - particularly from sites in the former Soviet
Union - will make it easier for terrorist or sub-state
groups to obtain enough nuclear material for a nuclear device.
The perpetuation of a nuclear weapons culture and its
supporting infrastructure, and the increasing availability of
relevant expertise from scientists and technicians formerly
employed in nuclear weapons establishments, will also make it
feasible for terrorist or sub- state groups to assemble a
workable nuclear device able to threaten large population
groups. While this does not imply that illicit nuclear weapons
will become widely available or the weapon of choice for
terrorists, it cannot be excluded that some extreme act of
terror might in the future be carried out with a nuclear
device. The most recent Harvard study on the subject makes a
telling point: It does not require a large step to get from
terrorist acts like Oklahoma City and the World Trade Center
to the first act of nuclear terrorism. Suppose that instead of
mini-vans filled with hundreds of pounds of the crude
explosives used in Oklahoma City and New York, terrorists had
acquired a suitcase carrying one hundred pounds of highly
enriched uranium (HEU), roughly the size of a grapefruit.
Using a simple, well- known design to build a weapon from this
material, terrorists could have produced a nuclear blast,
equivalent to 10,000 to 20,000 tons of TNT. Under normal
conditions, this would devastate a three-square-mile urban
area. In this context it cannot be excluded that one possible
future source of fissile material is plutonium, in vitrified
form, in former underground nuclear weapon test sites.
Accordingly, these sites must be declared and safeguarded to
prevent the illicit retrieval of this material.
It is unlikely that terrorist threats involving a nuclear
device or material can be eliminated by state-to-state
cooperation, even where a terrorist group has the backing of
another state. The logic of deterrence fails when one side
does not have an easily identifiable or vital asset at which
the other can aim. In addition, terrorists are likely to
employ unconventional means of delivery for their nuclear
devices, making it even more difficult for target states to
predict, prevent or limit the successful use or threat of use
of these devices.
The nuclear weapon states, as part of the decision taken in
1995 at the NPT Review and Extension Conference (NPTREC) to
extend the NPT indefinitely, reaffirmed their commitment to
Article VI of the Treaty and agreed to a specific program of
action which includes the determined pursuit of systematic and
progressive efforts to reduce nuclear weapons globally, with
the ultimate goal of elimination. The NPT rests on this
promise and it must be kept. In the long run, the nuclear
weapon states cannot realistically expect to dampen
proliferation pressures by retaining their own, albeit modest,
passively deployed forces. To deal effectively with
proliferation therefore means also tackling head on the
problem of nuclear disarmament and the elimination of nuclear
weapons at the earliest possible time.
As to the issue of legality, the Canberra Commission notes
with satisfaction that, in response to a request from the UN
General Assembly for , the International Court of Justice
(ICJ), in July 1996, stated unanimously that "a threat or use
of force by means of nuclear weapons that is contrary to
Article 2, paragraph 4, of the UN Charter and that fails to
meet all the requirements of Article 51, is unlawful", and
that "a threat or use of nuclear weapons should also be
compatible with the requirements of the international law
applicable in armed conflict, particularly those of the
principles and rules of international humanitarian law, as
well as with specific obligations under treaties and other
undertakings which expressly deal with nuclear weapons".
By majority vote the ICJ also stated: "It follows from
above-mentioned requirements that the threat or use of nuclear
weapons will generally be contrary to the rules of
international law applicable in armed conflict and in
particular the principles and rules of humanitarian law;
However, in view of the current state of international law,
and of the elements of fact at its disposal, the Court cannot
conclude definitively whether the threat or use of nuclear
weapons would be lawful or unlawful in an extreme circumstance
of self-defence, in which the very survival of a State would
be at stake." Moreover, in its advisory opinion the Court
unanimously stated that there existed "an obligation to pursue
in good faith and bring to a conclusion negotiations leading
to nuclear disarmament in all its aspects under strict and
effective international control". It is precisely this
obligation the Canberra Commission wishes to see implemented.
Canberra Commission Report Continued
Proposition One