Secretary of War Pete Hegseth on March 4, 2026 confirmed that a U.S. submarine sank an Iranian warship in the Indian Ocean with a torpedo, noting it was the first time a U.S. submarine sank an enemy vessel by torpedo since World War II. Hegseth vowed continued and intensifying military pressure on Iran, declaring that the campaign was “not a fair fight” and promising sustained operations in the days ahead.
The sinking of an Iranian naval ship off the coast of Sri Lanka was caused by a torpedo fired by an American submarine, Secretary of War Pete Hegseth confirmed, as he showed heart-stopping video of the strike.
