Appalled by the all-or-nothing choices in SIOP-62, the Kennedy administration drew up a new plan, known as SIOP-63. Despite its title, this one came into effect in the summer of 1962. It allowed the president several “withhold” options, including China and Eastern Europe, and made some attempt to distinguish between cities and military targets. Nevertheless, the plan was still built around the notion of a single devastating strike that would totally destroy the Soviet Union’s ability to make war. None of these options appealed to Kennedy at the moment of actual decision. He had asked the
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