Extracted text

OCR Page 1 of 12
SECRET SECRET 6 by this Treaty. Continuing construction and the absence of credible alternative explanations have reinforced our assessment of its purpose. Despite US requests, no corrective action has been taken. This and other ABM-related Soviet activites suggest that the USSR may be preparing an ABM defense of its national territory. (U) 2. Mobility of ABM System Components The US Government reaffirms the judgment of the December, 1985, report that the evidence on Soviet actions with respect to ABM component mobility is ambiguous, but that the USSR's development and testing of components of an ABM system, which apparently are designed to be deployable at sites requiring relatively limited special-purpose site preparation, represent a potential violation of its legal obligation under the ABM Treaty. This and other ABM-related Soviet activities suggest that the USSR may be preparing an ABM defense of its national territory. (U) 3. Concurrent Testing of ABM and Air Defense Components The US Government reaffirms the judgment made in the December, 1985, report that the evidence of Soviet actions with respect to concurrent operations is insufficient fully to assess compliance with Soviet obligations under the ABM Treaty. However, the Soviet Union has conducted tests that have involved air defense radars in ABM-related activites. The large number, and consistency over time, of incidents of concurrent operation of ABM and SAM components, plus Soviet failure to accommodate fully US concerns, indicate the USSR probably has violated the prohibition on testing SAM components in an ABM mode. In several cases, this may be highly probable. This and other such Soviet ABM-related activities suggest that the USSR may be preparing an ABM defense of its national territory (U) 4. ABM Capabilities of Modern SAM Systems The US Government reaffirms the judgment made in the December, 1985, report that the evidence of Soviet actions with respect to SAM upgrade is insufficient to assess compliance with the Soviet Union's obligations under the ABM Treaty. However, this and other ABM-related Soviet activities suggest that the USSR may be preparing an, ABM defense of its national territory. (U) SECRET SECRET,