Iran Warns ‘Proportionate Response’ Era Is Over as U.S. Tanker Strikes Deepen Battle for Hormuz
By Jahanzaib Saqib — SCN NEWS
TEHRAN — Iran warned on Sunday that future attacks on its interests would draw faster and more severe military retaliation after U.S. forces struck three Iranian oil tankers, pushing an increasingly dangerous confrontation beyond conventional military targets and deeper into the shipping lanes and energy infrastructure surrounding the Strait of Hormuz. The escalation came as Washington maintained a naval blockade aimed at restricting Iranian oil exports while Tehran continued using its ability to disrupt traffic through one of the world's most strategically important energy corridors as leverage against U.S. pressure.
Iranian Parliament Speaker Mohammad Bagher Ghalibaf said the United States should recognise that the rules of the conflict had changed, warning that any further attack on Iranian interests and security would receive a “faster, heavier and more painful” response. Ghalibaf's warning followed renewed exchanges between Iranian and U.S. forces after a relative reduction in military activity during much of August, signalling that Tehran intends to raise the potential cost of further American strikes rather than confine its retaliation to a proportional response.
U.S. Central Command said American forces struck three Iranian crude carriers on Saturday after Iran's Islamic Revolutionary Guard Corps launched ballistic missiles towards a U.S. aircraft carrier and destroyer. According to CENTCOM, two of the Iranian tankers were permanently disabled and a third, which was unladen, was destroyed. The American military described the vessels as part of a multibillion-dollar network used to generate funding for the IRGC and its regional allies.
The locations of the strikes underlined their economic significance. One tanker was hit off Kharg Island, the centre of Iran's crude-export infrastructure, another near Jask, east of the Strait of Hormuz, and the third in the Gulf of Oman. Iran exported roughly 90% of its crude through Kharg before the conflict, making pressure around the island particularly sensitive for an economy already struggling under sanctions and the U.S. blockade.
Iran responded with maritime attacks of its own. The IRGC said it targeted three oil tankers travelling through what Tehran described as an unauthorised route in the Strait of Hormuz as well as three U.S.-linked vessels elsewhere. Those Iranian claims could not immediately be independently verified, illustrating a recurring problem in the confrontation as both sides release military statements and imagery portraying their operations as successful.
Tehran also said ballistic missiles had targeted a U.S. aircraft carrier and another American warship involved in enforcing the blockade. Iranian authorities claimed the vessels suffered damage, but no independent evidence supported that assertion. CENTCOM said the American ships successfully evaded the attacks and that no U.S. personnel were harmed, meaning SCN NEWS cannot independently confirm Iran's claim that American warships were hit.
The exchanges mark a potentially consequential shift in the conflict because commercial energy infrastructure is increasingly becoming part of the battlefield. Washington is attempting to impose economic costs by restricting Iran's ability to export oil and targeting vessels it says finance the IRGC, while Tehran is threatening shipping moving through waters it claims to control. The result is an increasingly direct contest over who determines the movement of ships around the Strait of Hormuz.
U.S. Central Command said on Sunday that by September 6 its blockade operations had redirected 92 commercial vessels, disabled three and boarded two. Iranian authorities, meanwhile, have acknowledged difficulties moving crude past U.S. warships, although Tehran has maintained that its exports have not been completely eliminated.
That struggle matters far beyond Iran and the United States. Roughly one-fifth of global oil supplies passed through the Strait of Hormuz before the conflict, giving disruption in the narrow waterway the potential to affect energy markets thousands of kilometres away. Traffic through the strait has already been heavily disrupted, while Washington says U.S.-guided transits and alternative pipelines have restored a significant portion of pre-conflict energy flows.
The blockade is simultaneously intensifying pressure inside Iran. Reuters reported, citing three senior Iranian sources, that Washington's campaign to restrict oil exports and sanctions evasion is becoming increasingly difficult for Tehran to withstand. Ghalibaf acknowledged that Iran's struggle was now being fought on an economic front as well as a military one, citing currency volatility, inflation, unemployment and pressure on ordinary livelihoods.
Iran's Economy Minister Ali Madanizadeh said Tehran intended to respond to that pressure through domestic economic reforms rather than alter its political course under American pressure. The Economy Ministry has also established what Iranian media describe as an “Economic War Headquarters” to address problems arising from the conflict, highlighting the extent to which Tehran now views sanctions, the blockade and military operations as components of the same confrontation.
The military escalation therefore carries a larger strategic calculation for both sides. Washington is attempting to demonstrate that attacks on American naval assets will impose direct costs on Iran's ability to generate oil revenue, while Tehran is signalling that further pressure on its exports could result in broader attacks against U.S. military assets and shipping in and around Hormuz.
Neither side's strategy is without risk. American attacks on Iranian tankers can further weaken Tehran's export capacity, but an expanding maritime conflict also raises the danger to commercial shipping and global energy flows. Iran retains the ability to threaten traffic through Hormuz, yet prolonged disruption and an effective U.S. blockade could deepen the economic pressure Tehran itself is struggling to manage.
The confrontation has therefore entered a stage in which oil tankers are no longer simply carrying the economic consequences of the conflict — they are becoming military targets within it. Iran's declaration that proportional retaliation is over raises the stakes further: each new attack on a warship, tanker or export route now carries the possibility of triggering a larger response, making control of the Strait of Hormuz both an economic weapon and one of the most dangerous military flashpoints in the Middle East.