48. Memorandum From the President’s Assistant for National Security Affairs (Clark) to President Reagan1

SUBJECT

  • NSC Meeting on START—January 25, 1983

Issue: Can we table a “Basic Elements” paper during Round III? (S)

Facts: Ambassador Rowny feels very strongly that the US should table a paper which reflects the basic elements of the US position for both phases of START. This purpose would be to blunt the Soviet criticism that the US position is not comprehensive. In order to be able to table such a paper with the Soviets, decisions will be needed on the following questions:

—Would tabling such a Basic Elements paper change the US “phased” approach to negotiations?

—What should be the US position on key remaining elements of the US position (i.e., limits on bombers and cruise missiles and direct limits on throw-weight)? (The paper at Tab A addresses these questions.)

—Does the specific “Basic Elements” paper proposed (at Tab B)2 meet US requirements? Should it be tabled?

—What latitude should be provided in the Instructions to the Delegation (Provided at Tab C)3 on using the Basic Elements paper? (S)

Discussion:

The most fundamental issue involves making absolutely clear what impact tabling the Basic Elements paper is intended to have on the current “phased” approach to negotiations.

—One agency (State) feels that by tabling such a paper we would simply “show a little ankle” on the phase II issues of cruise missiles and direct throw-weight limits. State would not authorize the delegation to begin negotiating these phase II items until completing phase I. This [Page 152] would keep the existing US position and maintain our emphasis on working the most destabilizing elements (ballistic missiles) first.

—Others (OSD, Amb Rowny) feel that if we are to be effective in tabling such a paper we must be prepared to collapse the phases of negotiation. In their view, the Basic Elements paper puts the major elements of both phases on the table. Having done so, they argue we should be prepared to step away from the current US position favoring phases (in which cruise missile limits and direct throw-weight limits are deferred until later) and undertake to negotiate on cruise missiles as long as the Soviets are also prepared to negotiate on direct throw-weight limits. This critical difference over the impact of tabling a basic elements paper on the basic US phased approach to negotiations is the first issue discussed in the Basic Elements paper at Tab A. (S)

We anticipate that NSC principals will elaborate on their agencies’ positions and that new alternatives or possible compromises may be offered at the meeting. Given the complexity and interrelationships among the issues involved, we would recommend that you use this meeting to hear all the arguments. Based upon the discussion, the NSC staff will provide you a decision paper for your consideration following the meeting. (S)

Recommendation

OK No
________ ________ That you use the NSC meeting to familiarize yourself with the issues and hear the agencies’ arguments, but that you postpone an immediate decision until you have reviewed the NSC staff decision paper which will be provided after the meeting.4
[Page 153]

Tab A

Paper Prepared by the Strategic Arms Reduction Talks Interagency Group5

SUMMARY OF MAJOR ISSUES FOR THIRD ROUND OF START

This paper summarizes key points regarding issues for the next round of START negotiations. Where options refer to limitations under consideration, the proposed alternatives should be considered as internal guidance and not necessarily as recommendations for proposals to be tabled in the third round. For the implementation of these options, this paper should be considered in the context of the draft Basic Elements paper and third-round instructions.

I. Phasing

All agencies agree that, as recommended by the US START delegation, we should move away from our current approach of negotiating Phase I issues before Phase II issues and that we should be willing to discuss all issues comprehensively, but only on the condition that the Soviets are willing to be equally comprehensive by addressing seriously all of what are now described as Phase II issues (e.g., direct limits on throw-weight) and not merely the issues of greatest interest to the Soviets (e.g, cruise missile limits).

There is disagreement over whether the US should propose to implement START reductions in two discrete phases, or whether there should be a single phase of reductions. Whether to retain our ultimate goal of equal levels of throw-weight at below the current US level is not at issue.

Option 1: Single Framework for Discussion of All Issues

We should give up the notion of phases, whether in the sense of negotiations or reductions, and prepare a comprehensive, integral position for the third round. This option could be implemented by tabling a Basic Elements document. Such a procedure would have a number of advantages.

First and foremost, it maximizes the leverage which we possess by virtue of the Soviets’ interest in limiting cruise missiles. If we were to propose constraints for cruise missiles, even without indicating any [Page 154] numbers, without linking them directly to our second phase goals, we must expect the Soviets to “pocket” our willingness to discuss cruise missiles and to import the proposed constraints into the first phase. Indeed, it would hardly be credible to maintain that the US be allowed to build now a cruise missile force that would exceed the ceiling we would be willing to accept eight or ten years hence. The Soviets would attempt to move our proposed cruise missile constraints into the first phase, thus depriving us of the necessary leverage for achieving our second phase goals. Were this to happen, we would duplicate the mistake we made in allowing the ABM restraints of SALT I to take precedence over the restraints on strategic offensive arms, a procedure which virtually guaranteed that we would not achieve the goal of limiting the Soviet strategic offensive build-up to non-threatening levels.

By proposing a single set of restraints, we would obviate the need to address the question of whether we can, consistent with military requirements, propose ballistic missile and ballistic missile warhead limits below the 850 and 5000 level. The possibility of proposing further reductions in these categories now appears remote. In any case, it would hardly seem a realistic use of our time and energy to concern ourselves with the preparation of such a proposal.

This procedure also serves our political interests in that it permits us to come forward with a new position that is conducive to progress in the negotiations while retaining maximum negotiating leverage. It rebuts Soviet criticism of the US proposal as a non-comprehensive, non-serious proposal, which concentrates on US concerns while relegating Soviet concerns to a meaningless second phase. By explicitly addressing ballistic missile throw-weight, an area of Soviet advantage, we help explain the priority the US has placed on ballistic missiles in general, and on heavy ICBMs in particular. Otherwise, concentration on such demands as preferential constraints on heavy ballistic missiles risk appearing as an arbitrary attack on the way in which the Soviets have happened to structure their forces. The required Soviet reduction in throw-weight (65%) is comparable to the reductions the Soviets would have to make in ICBM warheads (58%), ballistic missiles (64%) and heavy ICBMs (65%), under our current Phase I proposal.

In the context of a single proposal, we should table both our proposed framework for constraints on ALCMs and our second phase goal of a direct throw-weight limit of approximately 1.8 million kg in order to make explicit our right to a ballistic missile force equal to that of the Soviet Union in destructive capacity. Our emphasis on throw-weight at this point will facilitate the negotiation of an agreement which accommodates our requirements in the bomber/cruise missile area. The importance of throw-weight as a measure of the destructive [Page 155] capability of a ballistic missile has been emphasized by the recent debate concerning the survivability of CSB. The sole unit of account which captures the ability of the Soviets to adapt their ballistic missile force to the task of threatening CSB is throw-weight. A direct limit on throw-weight would considerably simplify our current approach by allowing us the option of eliminating current indirect constraints on throw-weight (i.e., 210 heavy and medium ICBMs, with a sub-limit of 110 medium ICBMs).

While we would propose a unified set of constraints on strategic forces, we could, of course, take into account the practical problems of effecuating large reductions in forces by providing for gradual reductions in all units of account, in accordance with a schedule of agreed, equal intermediate ceilings.

Option 2: Separate Phases

Combining Phases I and II would establish a direct limitation on throw-weight (specifically the 1.8 million kg ceiling) as a US objective with the same weight and visibility as our other goals of equal ceilings on deployed ballistic missiles and warheads. To propose that the Soviets reduce their current throw-weight level by 65%, while the US reduces little or not at all, would be construed by the Administration’s critics, both here and in Europe, as a new and non-negotiable demand. These critics would invoke the throw-weight limit as evidence of a lack of seriousness and responsibility in the President’s arms control policies. Thus, collapsing the phases would undermine US credibility at the very moment when our objective should be to sustain the support of the US public and our Allies. Any decrease in political support for the Administration’s arms control policies would undercut our position and leverage at the START negotiations.

The first phase of the US START proposal focuses on destabilizing systems by seeking equal ceilings in the most easily understood indicators of strategic power: ballistic missiles (particularly ICBMs) and their warheads. Through specific limitations on heavy and medium ICBMs, the Phase I proposal is intended to reduce Soviet throw-weight to no more than 2.5 million kg (one-half the current Soviet level). Therefore, the ceilings in Phase I would provide a dramatic reduction in Soviet throw-weight as well as missiles and warheads. Moreover, because we are seeking in Phase I direct limits on the most destabilizing systems themselves, this approach is easier to explain and defend than direct limits on throw-weight, which is not a clearly understood concept outside the strategic community.

Furthermore, it is questionable whether direct throw-weight limits deserve the same prominence in our START proposal as the other limitations which we seek. Because of improvements in accuracy and [Page 156] yield-to-weight ratios, throw-weight is a factor of declining importance as a measure of strategic power. Despite their 250% advantage in throw-weight, no one claims that the Soviets are two-and-a-half times stronger than the US. In addition, throw-weight is more difficult to verify than limits on deployed missiles and warheads and is even difficult to define and to count.

As a Phase II objective, an equal throw-weight ceiling of 1.8 million kg is easier to understand and to defend. Achieving our Phase I objectives would result in a major reduction in Soviet throw-weight and would make such a ceiling a more realistic goal for future reductions. Seeking a direct throw-weight limit at the same time as our other Phase I objectives, however, would make it more difficult to achieve our more immediate and important goals of limitations on deployed missiles and warheads.

For these reasons, the President decided last year against including a direct throw-weight limit in the first phase of START. The result was a START proposal which, because of its fairness, ambitious objectives, clarity and coherence, has won the support of Allied governments and most of the US public. The phased framework of our proposal was an important element in gaining that support. Moreover, phasing is a source of negotiating leverage which we hope to utilize—through the Basic Elements approach—to draw the Soviets out on such as ballistic missile warhead limits. Combining the phases would be a major departure from our present framework which is not warranted by any developments in the negotiations; it should not be undertaken without careful consideration of our overall position in the START talks.

IG Participants
Options ACDA JCS OSD State Amb Rowny
1. Combine the phases X X X
2. Separate phases X X

II. Limits on Heavy Bombers and Air-Launched Cruise Missiles

A. Bomber Limits

Current guidance sets a goal of a ceiling of 250 heavy bombers in Phase II. This ceiling, however, would limit US flexibility in responding to unconstrained Soviet air defenses, possible modifications in US ballistic missile programs and the outcome of negotiations on ballistic missile limits. All agencies, therefore, agree that we cannot now propose a heavy bomber limit below 350, either under a single-phase approach or in the second phase of the alternative approach.

Option 1: Limit of 350 Bombers

This limit would provide the US and the USSR additional flexibility to meet bomber requirements. It would preclude any proposal to reduce [Page 157] below 350 heavy bombers in Phase II at this time. Because of the relationship between heavy bomber requirements and the permitted level of ballistic missile systems, this limit may be reassessed on the basis of the ballistic missile warhead ceiling. The bomber limit, however, would still be affected by the need to take into account unconstrained Soviet air defenses and the proposed limitations on ALCMs.

Option 2: Missile/Bomber Aggregate

This would set a combined limit on the heavy bombers and deployed missiles (1200) and a sub-limit on deployed missiles (850). Both sides would be allowed to trade ballistic missiles for bombers, but not vice versa. This approach could be adopted for either a single-phase approach or for both phases of a two-phase approach. It could also accomodate a higher Phase II bomber ceiling as in Option 1.

Option 2 would provide additional flexibility to expand the US bomber force in response to future challenges (at the expense of ballistic missiles), without necessarily increasing the proposed bomber ceiling. However, the adoption of a combined bomber/missile aggregate would involve a significant change in the framework of our position and would be viewed by some as movement toward the Soviet proposal and SALT II. The Soviets may use this step to support their proposals for total freedom to mix (i.e., to trade bombers for missiles as well) and a single warhead aggregate (including bomber weapons).

Option 3: Phase II Goal of Further Reductions

Conditional upon the decision regarding phasing, the US would, under this approach, abandon the internal objective of 250 heavy bombers but would not set an alternative level. As indicated under Option 1, our Phase II bomber requirements would depend upon several factors which cannot be predicted at this time, such as the permitted level of ballistic missile systems and improvements in Soviet air defenses. Rather than specify a Phase II limit of 350 bombers at this time (which would preclude Phase II reductions), Option 3 would treat heavy bombers (internally and with the Soviets) in the same way as Phase II limits on ballistic missiles and warheads, i.e., we would be willing to discuss further limits and reductions in Phase II if national security requirements permit.

B. Limit on ALCM Loadings

Current guidance is that the US should not seek special limits on ALCMs themselves, that ALCM carriers should not be subject to limits beyond those applicable to other heavy bombers, and that we should not propose limits on the maxi-bombers, and that we should not propose limits on the maximum number of ALCMs which could be carried [Page 158] on a heavy bomber. In the START negotiations, the USSR has pressed for limits on cruise missiles. Moreover, the Soviets and our other critics have charged that, without limits on cruise missiles, the US START proposal is not “comprehensive.” The issue, therefore, is whether to maintain current guidance or to set a limit on ALCM loadings. These limits would apply in the second phase of a two-phase agreement, if we should adopt the approach involving two phases of reductions.

Option 1: No Specific Limits at This Time

This option would limit ALCMs in the same way that we propose to limit other bomber weapons, i.e., by limiting the number of heavy bombers. This would provide more flexibility to adjust ALCM deployments to respond to improvements in unconstrained Soviet air defenses and reinforce our negotiating emphasis on more destabilizing ballistic missiles. Proposing an ALCM limit at this time could move the US closer to including bomber weapons in an overall nuclear weapon ceiling. In addition, the Soviets would probably attempt to bargain downwards any US-proposed limit on ALCMs.

This option would not, however, provide additional US leverage in the negotiations and would make achievement of a START agreement much more difficult. It would also leave our proposal open to criticism for a lack of “comprehensiveness.” In addition, Soviet ALCM deployments would be similarly unconstrained.

Option 2: Average Loading of 28 ALCMs per Heavy Bomber, Maximum of 20 ALCMs on Existing Bomber Types

This option is consistent with currently planned US ALCM deployments. The Soviets have already accepted this loading limit once on ALCM-carrying heavy bombers (in SALT II), so this option would be less likely to be the subject of serious public criticism than some alternative options. It would, however, draw the US into negotiations on one type of bomber weapon, which the Soviets would seek to expand to limit all bomber weapons.

[Page 159]
IG Participants
Options ACDA JCS OSD State Amb Rowny
Phase II Bomber Ceiling
1. 350 Bombers X X X
2. Missile/Bomber Aggregate X
3. Goal of Phase II Reductions X X
ALCM Loadings
1. No Limits X
2. Avg. Loading of 28, Max of 20 on Existing Types X X X X

III. Limits on Sea-Launched Cruise Missiles (SLCMs)

[Less than 3 lines not declassified] The USSR has deployed more than 1300 SLCMs, most of which are under 600 km range and can carry either nuclear or conventional payloads. In addition, the Soviets are developing a long-range SLCM (with a range above 2500 km) for land attack.

Current US guidance is to defer discussion of constraints on “slow-flying systems” other than heavy bombers (i.e., possibly including SLCMs) until Phase II. In the START negotiations, the USSR has proposed a ban on the deployment of cruise missiles (including SLCMs) over 600 km range, which all agencies agree is unacceptable to the US. The issue, therefore, is whether to propose a Phase II limit on SLCMs which is more acceptable to the US.

Option 1: No Limits

This approach would permit the US unlimited flexibility to deploy SLCMs. The primarily tactical roles of US SLCM platforms would prevent our nuclear SLCMs from being committed to the SIOP (although they could perform a strategic reserve role), so it may not be appropriate to limit them in START. Moreover, this approach recognizes the significant monitoring and verification problems associated with the other options. The alternative approaches, therefore, could have the effect of constraining the US while the USSR may be able to evade the limitation.

On the other hand, a refusal to discuss SLCM limits would give the Soviets a propaganda opportunity to attack the US position for leaving a “loophole” which would allow a major increase in strategic capability. Also, the Soviets could exploit the lack of SLCM limits to deploy a large number of long-range nuclear SLCMs for land attack. If the US were to argue that SLCMs should not be limited because of their tactical (as opposed to strategic) role, this would undermine our position that weapons should be subject to limitation on the basis of their capabilities, and not their missions.

Option 2: Ban All Nuclear SLCMs

This option would exempt from limitation the large majority of US SLCMs (which will not be nuclear-armed) and would ban the Soviet nuclear SLCM threat to the US and to surface ships. This option would require the Soviets to dismantle some portion of their SLCM force. (We do not know how many Soviet SLCMs are nuclear-armed.) This option [Page 160] is the most consistent with our INF position and would be the most politically appealing to domestic and international critics of US arms control policy.

However, our ability to distinguish between nuclear and conventional SLCMs with NTM alone is poor. Even with intrusive verification measures, the US could abandon its nuclear SLCM program with little assurance that the Soviets would comply with the ban or that we could detect Soviet cheating.

Option 3: Numerical Limit on All SLCM Platforms

This option would establish a relatively verifiable indirect limitation on SLCM deployments by setting a ceiling on SLCM platforms. Presuming that all submarines would have to be counted as SLCM platforms (for verification reasons), this option would also indirectly constrain the Soviet submarine fleet. Those surface ships with a SLCM capability (as determined by NTM) would also be counted. As the Soviets would have a greater number of SLCM platforms than the US, this option would allow the US considerable flexibility to expand deployments of nuclear and conventional SLCMs.

However, as a simple platform limit would contain no limit on SLCMs themselves, this approach would appear to be a purely cosmetic limitation. Moreover, a permissive limit (e.g., 300 or more vessels) would lead critics of US arms control policy to add the high number of permitted SLCM platforms to our proposed ceilings on bombers and deployed missiles in order to undercut our public focus on significant reductions. Also, because of the asymmetry in platform numbers, a platform limit would be difficult to negotiate.

Option 4: Limit Nuclear-Armed SLCMs to Equal Levels on the Basis of Average Loading per Platform

The number of platforms and the average loading limit could be set to accommodate planned US SLCM deployments. There are major uncertainties in our estimates of the number of Soviet nuclear SLCMs. However, to the extent that the Soviets comply with such a limit, this option would capture a large number of existing Soviet SLCMs and would presumably constrain the future Soviet threat to the US.

This option would be the most difficult to verify, as it would combine requirements to monitor SLCM payload (nuclear/conventional) and average loading per platform. Moreover, because maximum potential SLCM loadings would be significantly greater than the average loading limit, the Soviets would have a large breakout potential. (However, if the agreed loading limit is consistent with US deployment plans, the net national security impact would probably not be less favorable to the US than the absence of SLCM limits.)

[Page 161]

Option 5: Seek More Meaningful and Effective Limit

As indicated above, there are significant military, political and verification problems with the various SLCM limitations under consideration. On the other hand, a refusal to limit SLCMs would undercut the seriousness of the US START proposal and would leave the Soviets with a major capability to circumvent an agreement.

Under this approach, the JCS would take the lead on a study of the military and verification problems associated with SLCM limits, with a view to proposing more meaningful and effective SLCM limits to the NSC by the middle of the third round. If this option is approved, we would need to decide how to treat the issue of SLCM limits until the NSC decides on an approach. There are two major alternatives:

a) The US would express (publicly and to the Soviets) a willingness to accept SLCM limits but would defer a specific proposal.

b) The US would not express a willingness to accept SLCM limits until the difficult problems associated with this issue are resolved. If the Soviets raise the SLCM issue in the third round, the US delegation would confine its discussion to verification issues, without committing the US to limit SLCMs in START.

IG Participants
Options ACDA JCS OSD State Amb Rowny
1. No limits
2. Ban all nuclear SLCMs
3. Limit all SLCM platforms
4. Limit nuclear SLCMs on basis of avg. loading per platform
5. Seek different approach

IV. Limits on Mobile ICBMs

The Soviets have implied in the negotiations that they intend to deploy mobile ICBMs. At least one of their ICBMs in development would be suitable for mobile deployment. Soviet development of mobiles could have a positive impact on crisis stability (by reducing Soviet ICBM vulnerability) and could reduce the Soviet throw-weight potential. Counting Soviet mobile ICBM launchers, however, is much more difficult than for fixed launchers, and Soviet deployment of mobiles would greatly complicate US targeting requirements.

[Page 162]

The IG recommends that we neither propose to ban nor to permit mobile ICBMs at this time but continue our current position that mobile ICBMs, if allowed in START, must be accompanied by measures to ensure effective verification. We are developing a comprehensive verification package to enhance our ability to monitor Soviet mobile deployments, and this verification package should be an intrinsic part of our position. Furthermore, the US delegation would use Soviet interest in mobiles as leverage to achieve our other negotiating objectives.

V. Phase II Throw-Weight Ceiling

The US proposal for Phase II limits includes direct limits and reductions to equal levels of ballistic missile throw-weight below current US levels. The current US throw-weight level is approximately 1.9 million kg.

The IG recommends that we adopt a Phase II objective of an equal throw-weight ceiling on deployed ballistic missiles of just below 1.9 million kg, consistent with the throw-weight definition and counting rule described below. This level is consistent with projected US force structures under START.

VI. Throw-Weight Counting Rule

The IG recommends that, for existing types of ballistic missiles, throw-weight should be determined on the basis of the maximum throw-weight demonstrated in any flight test. There is concern, however, that in the future the Soviets may attempt to circumvent direct limits on throw-weight by testing their missiles with less throw-weight than they are capable of carrying.

The IG therefore recommends that, for new types of ballistic missiles, the maximum demonstrated throw-weight should be compared to potential throw-weight for a reference range, and that the larger of the two values should be assigned to the particular missile. This approach would be accompanied by collateral constraints which would result in less than 10% uncertainty in monitoring Soviet ballistic missile throw-weight.

  1. Source: National Security Council, National Security Council Institutional Files, Box SR–103, NSC 00072. Secret. Sent for action. Prepared by Linhard and Kraemer. Copied to Bush, Meese, Baker, and Deaver. McFarlane initialed the memorandum on Clark’s behalf. A stamped notation at the top of the memorandum indicates Clark saw the memorandum.
  2. Attached but not printed is an undated paper prepared in the START IG, “Basic Elements of an Agreement on the Reduction of Strategic Offensive Arms.”
  3. Attached but not printed is a January 20 draft message, “Instructions for Round Three of START.”
  4. Reagan initialed his approval of the recommendation.
  5. Secret; Sensitive.