Global & US Headlines
US Submarine Sinks Iranian Frigate IRIS Dena With Mk-48 Torpedo, First Such Strike Since 1945
On 4 March 2026, a U.S. attack submarine fired a single Mk-48 heavyweight torpedo that destroyed Iran’s frigate IRIS Dena in international waters south-west of Sri Lanka, ending an 81-year stretch without a U.S. combat torpedo sinking.