Military Undergoes Special Alert - USA News Report 4-18-1952
     All -agencies of the nation’s military establishment were placed on special readiness yesterday because of a “pattern of unknowns [UFOs] which appeared potentially dangerous,” the Air Defense command said today.

By USA News Report

…”Our detection system developed a pattern of unknowns [UFOs] in both the Northeast and Northwest which appeared potentially dangerous. We alerted all agencies of the national military establishment until the unknowns [UFOs] were identified, after which the period of special readiness was called off.”

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Categories: International UFO