NIE 11-3-65: Soviet Air and Missile Defense Capabilities (1965)

Declassified National Intelligence Estimate, 18 November 1965. Its communications section tracks the spread of the Soviet ‘semiautomatic data transmission system’ - the Vozdukh series data links - across the USSR and Eastern Europe, and predicts ‘more fully automated systems for interceptor control’ within a year or two: American intelligence watching the Soviet answer to SAGE take shape. CIA FOIA reading room copy (the site blocks automated access; archived copy linked).