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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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Russian Nuclear Ballistic Missile Sub Spotted Near Japan for the First Time

Posted on September 25, 2025 by Naval Open Source Intelligence (NOSI)

USNI News – A Russian Navy Borei-class ballistic missile submarine was spotted for the first time transiting the La Perouse Strait on Wednesday, according to Japanese officials.

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