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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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How Submarine Sonarmen Tirelessly Hunt For Enemies They Can’t Even See

Posted on October 25, 2021 by Naval Open Source Intelligence (NOSI)

War Zone – The ability to fight and win in the high-stakes game of undersea warfare is all about the art of listening. Here’s how it’s done.

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