World War II, Iranian and US Navy submarine
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While it’s been almost a century since the last kill by an American submarine, other navies have done so more recently.
The Aviationist on MSN
Iranian frigate sunk by US submarine off coast of Sri Lanka
IRIS Dena was one of Iran’s newest combat ships, and had 180 personnel on board when the submarine attacked. Reports of the Dena being in distress first emerged overnight between Mar. 3 and Mar. 4, 2026,
The Torsk's sinking of the Japanese vessel marked the last U.S. submarine kill for over eight decades - that is until March 3, 2026.
Lockheed secured a potential $480 million Navy contract for AN/SQQ-89A(V)15 anti-submarine warfare system engineering support.