Guided missiles would not only “offset” the USSR’s quantitative advantage, he reasoned. They’d force the Soviets to undertake a ruinously expensive anti-missile effort in response. Perry calculated Moscow would need five to ten years and $30 to $50 billion to defend against the three thousand American cruise missiles that the Pentagon planned to field—and even then, the Soviets could only destroy half the incoming missiles if they were all fired at the USSR. This was exactly the type of technology that Andrew Marshall had been looking for. Working with Jimmy Carter’s secretary of defense,
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