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.

This story has been updated with additional information from U.S. Central Command about the sinking of an IRGCN corvette. An American attack submarine sank an Iranian Navy ship off the coast of Sri Lanka,

The sinking of Iran's IRIS Dena by a US submarine marked a significant event, with Defence Secretary Pete Hegseth calling it the first enemy ship sunk by a torpedo since WWII. This incident raised troubling questions about the ethics of warfare,

Sri Lanka’s navy has recovered 87 bodies and rescued 32 people after an Iranian warship was sunk by a U.S. submarine in international waters near the island. U.S.

To this day, there has only been one recorded instance of submarine-on-submarine warfare during WWII. The German Navy's destroyed U-864 is toxic to this day.

World War II proved that control of the oceans could determine the outcome of a global conflict. While battleships had long dominated naval thinking, the war quickly showed that aircraft carriers and submarines were changing the rules.