In a significant escalation of the US-Israel-Iran conflict, Washington has launched a series of naval strikes targeting over 30 Iranian vessels across the Persian Gulf, Strait of Hormuz, and extending into the Indian Ocean. This marks a dramatic widening of the war theater beyond the Middle East’s traditional H๏τspots, as tensions spill into international waters critical for global trade routes. The attacks, confirmed by US Defense Secretary Pete Hegseth, include submarine torpedoes, airstrikes from carrier groups, and drone operations aimed at crippling Iran’s naval capabilities.

The offensive began in earnest on March 4, 2026, with a US submarine sinking the Iranian frigate IRIS Dena in the Indian Ocean off the coast of Sri Lanka. The vessel, which had recently participated in joint naval drills with India, was struck without warning in international waters, resulting in at least 104 deaths and dozens missing. This incident, the first torpedo sinking of a warship since World War II, has drawn international condemnation and raised concerns about the conflict’s impact on neutral nations like India and Sri Lanka.
Building on this, US forces expanded operations, annihilating over 10 Iranian mine-laying boats near the Strait of Hormuz and striking additional warships in the Gulf of Oman. President Trump’s administration has vowed to “annihilate Iran’s navy,” with reports indicating that the USS Abraham Lincoln carrier strike group, positioned off Iran’s southern coast, has been instrumental in these ᴀssaults. Iranian sources claim retaliatory strikes, including ballistic and cruise missile attacks on a US Navy destroyer in the Indian Ocean, causing fires and potential casualties. Iran’s Islamic Revolutionary Guard Corps (IRGC) reported hitting two American ships, forcing others to flee toward the southern Indian Ocean.

As of March 11, 2026, the war has entered its 12th day, with naval engagements intensifying. Iran has bombarded the US Navy’s 5th Fleet headquarters in Bahrain and launched over 10 Kheybar Shekan missiles at targets in Tel Aviv as part of Operation True Promise Four. Proxies such as the Houthis have disrupted shipping in the Red Sea, but the shift to the Indian Ocean—where three Iranian ships recently transited after Indian exercises—signals a new phase of asymmetric warfare.
The US and Israel continue their air campaign, with B-52 bombers and precision strikes targeting Iranian infrastructure. Casualties are mounting: over 1,045 reported ᴅᴇᴀᴅ in Iran from initial strikes, with naval losses adding to the toll. Intelligence suggests potential Chinese involvement in providing satellite support for Iranian counterstrikes, complicating the geopolitical landscape and raising fears of broader involvement. Indian Prime Minister Narendra Modi faces diplomatic pressure, as the sinking of a ship recently hosted in India has strained US-India ties.
With oil prices surging and shipping routes threatened, the international community calls for de-escalation, but diplomatic channels remain frozen. Iran’s threats of prolonged warfare contrast with US ᴀssertions of a “decisive victory,” as the Indian Ocean becomes the latest battleground in this escalating conflict.