US Submarine Sinks Iranian Warship by Torpedo, First Incident Since World War II
A U.S. submarine has successfully targeted and sunk an Iranian warship in the Indian Ocean, marking the first instance of such an action since World War II. War Secretary Pete Hegseth confirmed the incident during a press briefing at the Pentagon on March 4, 2026, alongside Chairman of the Joint Chiefs of Staff, General Dan Caine.
Details of the Operation
Hegseth reported that the Iranian vessel, identified as the IRIS Dena, was struck by a single Mark 48 torpedo while operating in international waters. The Secretary characterized the operation as a clear indication of the U.S. commitment to military effectiveness, stating that the Iranian warship was caught off guard, leading to its sinking. Hegseth emphasized that this moment is akin to prior wars in which the U.S. navigated challenges decisively.
General Caine reiterated Hegseth’s assessment, confirming that the operation achieved immediate results and effectively neutralized the threat posed by the Iranian vessel, sending it to the seabed.
A Series of Maritime Strikes
In addition to the sinking of the IRIS Dena, Hegseth stated that the U.S. Navy had previously targeted another Iranian vessel, the Soleimani, which was a corvette-class missile ship named after the late Qasem Soleimani, who was killed in a U.S. drone strike in January 2020. He described the ship’s fate as further evidence of the U.S. armed forces’ capability, declaring that the Iranian Navy had been rendered ineffective and incapable of combat.
The Soleimani was reported sunk in the Strait of Hormuz, a strategically significant area close to Iranian territorial waters.
Strategic Control in the Region
Hegseth elaborated on the ongoing military operations, indicating that U.S. and Israeli forces were poised to gain complete control over Iranian airspace following significant reductions in Iran’s missile capabilities during the recent conflict. He highlighted an increase in the deployment of U.S. bombers and fighter jets to the region, forecasting a shift in operational strategy utilizing precision-guided munitions.
This escalation follows multiple days of intense fighting, which has resulted in casualties among both Iranian and Lebanese forces, with reports indicating over 1,000 fatalities in Iran alone and additional casualties among U.S. personnel in the region.
Humanitarian Impact
The military actions have led to significant disruption, with thousands of travelers stranded in the Middle East as the situation develops. The U.S. State Department has issued warnings and advised citizens to vacate numerous countries in the region amid heightened tensions.
General Caine confirmed that military resources are being deployed to assist American citizens stranded abroad, as the government coordinates efforts to ensure their safe return.
The implications of these naval engagements and strategic military operations continue to unfold, as both the U.S. and Israel monitor the evolving situation in the Middle East.
For further context on regional security dynamics, see our previously published article on U.S. and Israeli military operations against Iranian forces.
Published on 2026-03-04 13:43:00 • By Editorial Desk • Category:
