Islands under Iran's control, spanning from the northern Arabian Gulf to the entrance of the Strait of Hormuz, have returned to the forefront of the war as part of direct military calculations. These islands gain additional importance as potential points for engagement in a new phase of the war, shifting the battlefield to energy warfare and transit control. At the heart of this map stands Kharg Island, which US President Donald Trump had threatened to seize, considering it the lifeline for Iranian oil exports. Meanwhile, other islands serve functions of controlling transit, military fortification, and advanced strategic positioning on one of the world's most sensitive maritime passages. Kharg Island is an 8-kilometer-long coral island in the Arabian Gulf, located approximately 43 kilometers off the mainland and about 500 kilometers northwest of the Strait of Hormuz. It is the terminus for pipelines coming from Iran's oil fields in the central and western parts of the country. It was established by the giant American oil company Amoco and seized by Iran during the 1979 revolution. Kharg Island occupies an exceptional position in Iran's strategic structure, serving as the lifeline for the majority of Iranian crude exports. It is located in the northern Gulf off the Iranian coast, making it close enough to the Iranian mainland to remain under the umbrella of its fires, missile, and drone capabilities. Its importance stems primarily from its direct economic function. The island houses the terminal through which almost all of Iran's oil exports pass, securing the largest share of the state's crude revenues. During the ongoing war, it quickly became a prominent target in military discussions, as striking it would impact one of the state's most vital funding sources. The Most Important Gateway The island developed during Iran's oil boom in the 1960s and 1970s because large parts of the Iranian coast were too shallow to allow supertankers to dock. Hence, with its deep harbors and terminals, the island became the most important gateway for Iranian oil exports, especially to Asian markets, particularly China. Theoretically, any American control could choke a vital financial artery for the regime and give Washington leverage to compel Tehran to keep the Strait of Hormuz open. Moreover, due to its location, the island could, in such a scenario, turn into an advanced platform for military pressure on the Iranian mainland. However, this temptation is met with significant obstacles. Seizure would require stationing American forces on a small island very close to the Iranian coast, meaning within range of Iranian drones, missiles, and mobile artillery, and the potential use of mines and fast boats. Thus, an attacking force could quickly become a fixed target vulnerable to attrition. Furthermore, retaining the island after forces enter it would require constant air cover, advanced air defense systems, and protected supply lines by sea and air. Tehran has increased its fortifications on Kharg in recent weeks, sending additional personnel and deploying air defense assets, alongside reports of mines around the island. Significant Strategic Advantages It also threatened to target American forces if they attempted to enter the island, and to strike the energy infrastructure of companies dealing with the United States if its oil facilities were targeted. The island includes storage tanks, housing for thousands of workers, and has a clear civilian presence. It also contains an old Portuguese fortress and the ruins of an early Christian monastery in the Gulf. The Washington Post said on Thursday that for the US, capturing the island would give the United States significant strategic advantages, including potentially choking off Tehran’s ability to pay its military. Despite intensive strikes launched by the United States and Israel against targets inside Iran, Kharg Island, the most important center for Iranian oil exports, has remained off the list of these strikes so far; experts warn that striking it could cause a catastrophic collapse in global markets. Threat to Strike the Island Trump had repeatedly threatened to launch strikes on the island's oil infrastructure if Tehran did not stop its attacks on ships in the Strait of Hormuz, a warning observers said could heighten market tensions already suffering unprecedented supply disruptions. Trump had stated during the bombing of Iran that the United States had completely destroyed military targets on the island. He added that the American strikes had not targeted the oil infrastructure on Kharg Island, but he wrote that if Iran or anyone else does anything to interfere with the free and safe passage of ships through the Strait of Hormuz, he will immediately reconsider this decision. Centcom said US forces had struck more than 90 Iranian military targets on the island, “while preserving the oil infrastructure.” The regional military command unit said it had destroyed naval mine storage facilities, missile storage bunkers and numerous other military sites.
