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NOSI – Naval Open Source Intelligence™

Operational naval news, curated from open source intelligence, intended to serve as a source of continuing naval education. By Michael P. D'Alessandro M.D.

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Navigate by the Stars—From Beneath the Waves

Posted on October 29, 2021 by Naval Open Source Intelligence (NOSI)

USNI Proceedings – A periscope can be a fine stand-in for a sextant.

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