Arms Control and Strategic Nuclear Weapons: Unilateral vs. Bilateral Reductions (CRS Report for Congress)
Release Date |
Revised May 16, 2002 |
Report Number |
RL31222 |
Report Type |
Report |
Authors |
Amy Woolf, Foreign Affairs, Defense, and Trade Division |
Source Agency |
Congressional Research Service |
Older Revisions |
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Summary:
On November 13, 2001, President Bush announced that he planned to reduce U.S. strategic
nuclear
weapons to between 1,700 and 2,000 operationally deployed warheads. He noted that he would
make these reductions unilaterally, without pursuing a formal arms control agreement with Russia.
President Putin welcomed the proposed reductions, but argued that they should be made through a
formal treaty. Although the United States eventually agreed to sign a "legally binding" agreement,
officials in the Bush Administration have argued that the United States should not be bound by
formal arms control treaties. It argues that many of these agreements do not limit threats to the
United States but they do restrict U.S. flexibility in ensuring its national security. But, the absence
of formal arms control treaties would bring about changes in the role of Congress; the Senate has a
constitutionally-mandated role in giving advice and consent to the ratification of formal treaties but
would have no role in approving informal agreements. This approach would also change the role
of arms control in the relationship between the United States and Russia.
The United States and Soviet Union used negotiated treaties and unilateral measures to reduce
their nuclear forces. The START I Treaty, which reduced strategic offensive nuclear weapons, and
START II Treaty, which did not enter into force, are examples of the former; the 1991 Presidential
nuclear initiatives, which eliminated non-strategic nuclear weapons, are an example of the latter.
A review of these cases highlights relative strengths and weaknesses of these two mechanisms.
Formal treaties allow the participants to understand and predict future changes in forces and threats,
allow for transparency in monitoring those forces, and allow for balanced and equitable trades
between the forces of the participating parties. On the other hand, the search for balanced trades and
the need for detailed definitions tends to lengthen the negotiating process, while the detailed
provisions and requirements lengthen and add to the cost of the implementation process. Unilateral
measures, on the other hand, can be devised and implemented more quickly, allow for more
"sweeping changes," and provide the participants with the flexibility to reverse their reductions, if
necessary. However, they often do not provide transparency or predictability, and there is the
potential for destabilizing reversals.
The Bush Administration's proposals demonstrate many, but not all of these characteristics.
The President announced his proposed reductions relatively quickly, but he plans to implement them
at a slow pace, over 10 years. And, although his reductions appear to move well beyond those
implemented under START I, they are no more "sweeping" than reductions that have been
considered for the past 10 years under START II and a potential START III Treaty. The President
did not propose any new monitoring measures, but the United States and Russia are likely to
continue to implement the monitoring regime from START I to improve transparency with future
reductions. Finally, the President and his advisers have highlighted the fact that these measures will
provide the United States with the flexibility to reduce or restore its forces quickly. Russia, on the
other hand, may feel threatened by the U.S. ability to reverse its weapons reductions. And, without
precise definitions of those weapons that will be eliminated, disputes and suspicion could arise in
the future.