Yet
opponents of missile defense today argue in favor of maintaining
U.S. vulnerability to ballistic missiles based on the same flawed
premise. They assert that Russia, China, and even Third World
countries will expand and modernize their strategic offensive
forces to overcome a U.S. missile defense system. Russia would
decide to maintain a larger strategic nuclear arsenal than it
otherwise would; China would decide to modernize its strategic
nuclear forces to offset America's capabilities; and a domino
effect would lead Third World states such as North Korea to equip
their ballistic missiles with capabilities that could fool
America's NMD system.
Changing the focus of the concern to China
or North Korea does not fix the flawed premise. Any country that
would threaten the United States will see its vulnerability to
missile attack as an invitation to build up its strategic missile
forces to limit U.S. foreign policy options.
Myth #2: Deploying a U.S. national missile
defense system will cause Russia to maintain a larger strategic
nuclear arsenal than it otherwise would.
Arms
control advocates contend that Russia will respond to America's
deployment of an NMD by maintaining more strategic nuclear forces
than it would otherwise. Stephen W. Young of the Coalition to
Reduce Nuclear Dangers, for example, has stated that "U.S.
abrogation of the ABM Treaty [in the pursuit of an NMD deployment]
could end these [START process] reductions, as well as the
potential for even deeper cuts." Inherent in such
assertions is the belief that Russia will respond precisely as arms
control advocates thought the Soviet Union would if the United
States had not signed the ABM Treaty. Moreover, they believe Russia
will refuse to ratify the Strategic Arms Reduction Treaty (START)
II or enter into a START III, and may even withdraw from the START
agreement if America builds an NMD system.
Reality: Current economic circumstances
will force Russia to reduce its strategic nuclear arsenal even
without arms control considerations.
The
argument in favor of an offensive buildup of Russian strategic
forces ignores the fact that the Cold War is over and that Russia
is not likely to seek a Soviet-style confrontation with the United
States. It also ignores the possibility that Russia could mimic the
Soviet Union's response after the ABM Treaty was signed and seek a
first-strike capability. The reality, however, is that Russia does
not have the financial resources to pursue an arms race against the
United States; in 1997, its gross domestic product (GDP) was only
an estimated $644 billion, compared with America's GDP of $7
trillion.
Moreover, a Russian proposal put forth
before last month's Moscow summit indicated that the Duma
anticipates Russia's economic problems will cause its strategic
nuclear arsenal to fall below 1,500 deployed warheads. The proposal
sought to reduce the ceilings in a START III agreement to no more
than 1,500 warheads each, which would pull down the number of
prospective U.S. strategic warheads to the approximate levels that
Russia expects it will be able to maintain.
Myth #3: To overwhelm America's national
missile defense system, Russia and China will invest in multiple
independently targetable reentry vehicle (MIRV) capabilities.
Members of the Union of Concerned
Scientists argue that Russia will develop MIRV capabilities for its
land-based intercontinental ballistic missiles (ICBMs) as a likely
response to America's NMD deployment. A MIRVed missile
contains more than one warhead, and MIRVed ICBMs would be
prohibited under START II. Scientists in this arms control advocacy
group assert that Russia could "extend the life of its existing
large, multiple warhead ICBMs or fit its newer land-based missiles
with multiple warheads." The MIRV
capability, they believe, would give Russia the ability to saturate
and overwhelm U.S. defenses. The scientists' report makes a similar
assertion about China's response to an American NMD system.
Reality: Boost-phase defenses can
effectively counter MIRVed missiles, which would deter hostile
states from investing in them.
The
assertion that deploying a national missile defense system for
America will cause Russia and China to seek MIRV capabilities would
be appropriate only in the context of the ground-based missile
defense system planned by the Clinton Administration. That system
would be capable of destroying individual warheads only in the
mid-course phase of flight. It would have to intercept all the
warheads that had been released during this phase. Russia and China
could achieve relative advantages over such a limited system by
acquiring MIRV capabilities for their land-based missiles.
The
concern expressed by the scientists, however, will not pertain to a
layered missile defense system that has a boost-phase intercept
capability, enhanced by space-based assets such as sensors,
interceptors, and lasers. This system was proposed in 1999 by The
Heritage Foundation's Commission on Missile Defense. Boost-phase
defenses would destroy the missiles early in flight, when they are
most visible and before they can release their warheads. Land-based
missiles that have additional warheads have no advantage against
such defenses. With a layered defense system in place, Russia and
China would not have a strategic incentive to MIRV their land-based
missiles because these missiles would not offer greater chances to
penetrate America's defenses. Obtaining the
offensive advantage under these circumstances would require
increasing their number of missiles. Russia is barely able to
maintain the number of missiles it now has.
Myth #4: China's strategic missile
modernization program is motivated by a U.S. national missile
defense decision.
In a
June 29, 2000, letter to President Clinton, 45 specialists on
U.S.-China relations stated that "[c]urrent plans for NMD
deployment are likely to serve as a catalyst for China to
accelerate nuclear weapons modernization, since it believes that
even a simple defense configuration will leave its nuclear arsenal
vulnerable."
Reality: China embarked on its strategic
weapons modernization program in the 1980s, when the United States
was strictly adhering to the ABM Treaty prohibiting an NMD.
China's ballistic missile program dates
back to the 1950s. Its mobile, solid-fueled ICBM program, which was
initiated in the 1980s, is expected to reach operational capability
within the next five years. Beijing deployed most of its 20 or so
CSS-4 ICBMs during the 1990s when the Clinton Administration had
halted the Bush Administration's NMD program and had begun to
dismantle it. The House Select Committee on U.S. National Security
and Military/Commercial Concerns with the People's Republic of
China released a report in May 1999 that described China's
modernization efforts.
Clearly, China was motivated to acquire
and improve its strategic missile force for reasons other than a
possible deployment of an American missile defense system. It is
likely to continue its efforts to modernize its forces regardless
of Washington's decision to deploy a national missile defense
system.
Myth #5: The expansion and modernization
of China's strategic nuclear forces will have a domino effect in
the Asia-Pacific region.
Stephen Young of the Coalition to Reduce
Nuclear Dangers has argued that a nuclear missile domino effect
will occur in South Asia if America's deployment of an NMD system
leads China to build up its offensive nuclear weapons.
Specifically, Young predicts, "India and then Pakistan could
respond [to a Chinese buildup] by increasing their budding
arsenals." This argument
assumes that first India and then Pakistan would adopt the policy
of trying to match China's nuclear arsenal missile-for-missile or
warhead-for-warhead.
Young also believes India's nuclear
missile procurement will lead Pakistan to procure a nuclear missile
arsenal. The implication is that the deployment of an American
missile defense system would result in the procurement of nuclear
missiles by Third World states. This assertion is wildly
opportunistic, stretching the logic of the domino effect well
beyond its feasible boundaries and making it appear that the United
States is totally responsible for nuclear and weapons
proliferation.
Reality: An arms race in Asia has
everything to do with regional rivalries and nothing to do with the
deployment of an NMD by the United States.
An
unofficial description of India's nuclear weapons doctrine states
that it is based on a policy of "credible minimum nuclear
deterrence" for retaliating against a nuclear attack on India. Although the
survivability of this retaliatory force is considered very
important and based on the need to maintain redundant, mobile,
dispersed, and hidden nuclear forces, the policy decision is not
based on matching the nuclear forces of another country in
numerical terms. Ironically, India may have adopted China's policy
during the Cold War, when its minimal strategic nuclear deterrent
force--far smaller than the U.S. and Soviet forces--was adequate
for its own security and for maintaining a global balance of
power. The Indians are
more likely to focus on the larger number of intermediate-range
missiles that China is procuring, which could threaten most of
India's territory, rather than the new generations of China's ICBMs
that could threaten U.S. territory.
Young may be right that India and Pakistan
are preparing to engage in a nuclear missile race. China may be
contributing to the problem by pursuing a policy of selective
missile and nuclear proliferation that favors Pakistan. However, such a
competition has nothing to do with the deployment of a U.S.
national missile defense. India and Pakistan conducted nuclear
tests in the spring of 1998. They were motivated to conduct these
tests by regional rivalries and the perceived prestige that
possessing nuclear weapons would give them, not by U.S. policies, since the United
States had ceased conducting nuclear tests in 1992.
Myth #6: Deploying a national missile
defense will encourage a Third World qualitative arms race to gain
effective countermeasures.
The
report of some members of the Union of Concern Scientists also
discussed the possibility that Third World states, such as North
Korea, would be motivated to deploy more capable missiles than they
now have if the United States deploys an NMD system. These new, more
effective missiles, they assert, would include countermeasures like
balloon decoys to fool America's missile defenses. The scientists
assert that an NMD system would never be able to distinguish
between real warheads and the decoys.
Reality: Boost-phase defenses can defeat
countermeasures, such as balloon decoys.
The
assessment by the scientists may be optimistic about North Korea's
ability to deploy effective countermeasures and pessimistic about
America's ability to develop a weapons discrimination capability. Such
countermeasures would be problematic for the Administration's
planned land-based missile defense system, which would intercept
the warheads only during the mid-course of flight. The criticism,
however, is not applicable to a robust missile defense system that
includes a boost-phase intercept capability. As with MIRVed
missiles, a boost-phase intercept system could destroy the launched
missiles before they are able to release their warheads and any
decoys. With this capability, North Korea and other states would
have little incentive to spend valuable resources to modernize
their limited missile force by equipping the missiles with decoys.
For these reasons, The Heritage Foundation Commission on Missile
Defense proposed a layered defense system in 1999 that addresses
the problem of decoys.
Myth #7: Missile defense is incompatible
with efforts to reduce offensive strategic nuclear weapons.
Arms
control advocates assert that an NMD would block further reductions
in America's offensive strategic nuclear forces. They fear the
initiation of an defensive arms buildup, which would force the
United States to retain a relatively large number of offensive
strategic nuclear weapons to overcome reactions to its deployment
of a national missile defense system, at least in the longer term.
In other words, an NMD would be an addition to America's existing
forces, and no reduction of strategic weapons would be
possible.
Reality: Missile defense reduces both the
reliance on and the need for greater numbers of offensive strategic
nuclear forces to meet national security requirements.
Once
a national missile defense system is deployed, America will not
need to build up its offensive forces. With defenses in place, it
would rely less on its offensive strategic nuclear weapons and more
on non-nuclear defensive weapons to meet its national security
requirements.
Trading offensive forces for defensive
ones is a strategy that is best understood in terms of damage
limitation. In other words,
the purpose of having strategic forces would be (1) to deter
aggression and then (2) to reduce its impact, should deterrence
fail, by limiting the damage that aggression would inflict on
American territory. Arms control can play an important role in
furthering such a damage limitation strategy by limiting the
numbers of weapons that threaten the United States.
Because U.S. national security
requirements for strategic forces depend on the specific targeting
requirements of the military, deploying an NMD system would allow
the United States to reduce its offensive weapons. For example, it
is believed that Russia has 360 silo-based ICBMs. It is safe to
assume that these missiles are on the U.S. military's target list
for its offensive forces. If all of them are on the list, then the
military is likely to have assigned at least 700 strategic warheads
to cover them. If a robust,
layered NMD system--which includes space-based components with a
boost-phase intercept capability--could defend against 100 of these
Russian ICBMs, the military would be free to reduce its offensive
strategic nuclear force by up to 200 warheads. Moreover, the
layered defenses would improve the survivability of U.S.
retaliatory forces in an attack.
This
is not to say that the United States would be able to rely
exclusively on defensive weapons to meet the targeting
requirements. Some sites--such as enemy command-and-control
centers--cannot be targeted with defensive weapons. But it does
recognize that arms control can be useful, limiting the potential
hostile targets and simplifying damage limitation.
The
fact that mounting a missile defense would help to limit offensive
forces should lead arms control advocates to reconsider their
opposition to missile defense. Prior to last month's summit with
Russian President Vladimir Putin, Russia proposed lowering the
START III ceiling from between 2,000 and 2,500 deployed warheads to
1,500 warheads each. The media indicated that the U.S. military
objected to the Russian proposal because no internal review
indicated that U.S. war plans could be executed with fewer than
2,000 warheads. However, if robust
missile defenses were in place, it is likely that an internal
review would confirm that the U.S. military could indeed execute
its strategic war plans with fewer than 1,500 warheads.
A
number of specific conditions must be met and a robust missile
defense system put in place if the United States is to be able to
reduce the number of deployed strategic nuclear warheads to between
1,000 and 1,500. The following conditions, which may not
materialize, nevertheless are consistent with existing forecasts of
strategic weapons developments worldwide:
-
Russia must
reduce its strategic nuclear arsenal to no more than 1,500 deployed
warheads. The reduction in Russia's deployed warheads must
be accompanied by a similar reduction in its delivery systems and
strategic infrastructure, which includes such things as
command-and-control centers, bases, and storage facilities.
-
China must not
allow its deployed strategic nuclear force to exceed 100
warheads. China's strategic infrastructure must also be
limited.
-
The strategic
missile forces of potentially hostile Third World states such as
India, Iran, Iraq, and North Korea must remain very
limited. These states should not possess more than 50 or
so deliverable warheads combined.
- The United
States must maintain a fully modernized, reliable, and effective
strategic offensive nuclear force. Such a force should be
capable of rapidly destroying threatening strategic targets,
thereby executing the damage-limitation strategy.
Although America's strategic target list
is classified, reports in the press indicate that the U.S. military
has designated in its strategic war plans roughly 2,300 targets in
Russia. Given that this
target list is also likely to include a number of targets in China,
the total strategic list probably includes around 2,500
targets.
Assuming that the reported numbers on the
existing list are accurate and the first three conditions have been
met, the total could be reduced to fewer than 1,000 targets, since
a robust missile defense could cover 200 or more of the remaining
targets. A missile defense architecture would also improve the
survivability of America's retaliatory forces. The military could
cover the remaining 800 or fewer targets with roughly 1,200
deployed strategic offensive warheads in a modernized force. As of
January 2000, the United States had 7,763 strategic warheads
deployed on ICBMs, submarine-launched ballistic missiles (SLBMs),
and heavy bombers. Thus, under conditions
stipulated above, deploying a robust missile defense system would
allow the United States to reduce its strategic nuclear force by
roughly 85 percent from current levels.