Didamar Island Attack: Why Iran Hit Oman’s Hormuz Outpost

Iran’s Islamic Revolutionary Guard Corps has struck the shipping navigation installations on Didamar, a small Omani island also known as Little Quoin that sits beside the southern traffic corridor of the Strait of Hormuz off the Musandam Peninsula. The attack took place on November 8, when European Sentinel-2 satellite imagery recorded apparent scorch marks near the island’s radar and radio equipment, and Iranian state media carried the Guards’ claim two days later. A Guards navy official stated that the navigational aid systems south of the strait had been destroyed, though no damage assessment has been released. The strike carries Iran’s campaign onto the soil of Oman, whose foreign minister discussed joint mechanisms for the strait with Iran’s foreign minister as recently as November 5.

Iranian state television said the personnel and equipment on the island were “helping the flow of oil smuggling by the enemy”, meaning the tankers that have kept using the southern route with American support. The Guards’ navy official added that no vessel Iran considers unauthorised had passed through the route overnight, while a separate statement blamed the destruction of what it called U.S. coastal radar and navigation aids for raising the risk to ships using illegal passages. The attack followed U.S. strikes on Qeshm Island on November 2, which American officials described as limited defensive action against Iranian surface-to-air missile threats rather than a return to full-scale combat.

Shipping and maritime security sources have assessed that the strike is likely to have only limited impact on commercial traffic, with other navigation systems in place elsewhere. Merchant vessels have continued to use the southern corridor since November 8, with U.S. forces escorting part of that traffic. Iranian claims of losses among those ships have nonetheless kept rising, with the Guards having said on November 10 that a third tanker had exploded after striking a mine. On November 11 the regular army’s navy said a tanker had caught fire after hitting a mine in a prohibited area east of the strait, and the Guards claimed that two more tankers had exploded while leaving under the protection of U.S. military aircraft. None of the ships was named, and the UK Maritime Trade Operations centre recorded only one incident involving a tanker in its advisory that day, with the state of its crew and the extent of any damage left undisclosed.

Didamar carries a lighthouse first established in 1914 and shore radar and radio equipment reportedly used to track vessels and coordinate traffic at the entrance to the Persian Gulf. That function has grown considerably more important since the Guards’ navy declared the strait closed to vessels that do not coordinate their passage with Tehran. U.S. Central Command stated in late October that its forces had cleared Iranian mines from the primary transit routes, a claim the Guards disputed, and it continues to enforce the blockade of Iranian ports that has run for months. Neither Central Command nor Oman’s media ministry commented immediately on the Didamar strike when asked on November 11.