# Iris Dena

U.S. Submarine Sinks Iranian Warship in the Indian Ocean — A Strategic Shock and a Political Test for New Delhi

A U.S. submarine torpedoed and sank the Iranian warship Iris Dena in international waters of the Indian Ocean after the vessel had taken part in India's Milan 2026 exercises. The attack, which killed dozens and rescued some survivors, has intensified debate over the legality of U.S. actions, provoked anger in Tehran and domestic criticism in New Delhi for its silence, and signals a dangerous widening of the conflict beyond the Middle East.