The United States has widened its blockade of Iran from the sea to the land, announcing a new task force to choke off the overland routes Tehran uses to move weapons and other banned goods, on the same day American forces fired on and disabled a cargo ship that tried to break the naval blockade in the Gulf of Oman.
US Central Command, known as CENTCOM, said on Saturday that it had set up Task Force Iron Gate "to prevent Iran from using ground routes to transport advanced weapons and other materials". The move extends a naval blockade of Iranian ports in the Strait of Hormuz that has been running for months, and it marks the sharpest tightening of the economic and military pressure on Tehran since the war entered its eighth month.
The task force is a small, dedicated unit of about 20 civilian and military personnel based in Tampa, Florida, where CENTCOM has its headquarters. It will work with other US government agencies to stop "advanced weapons systems, dual-use technologies, sanctioned materials, and illegal revenue streams" moving across Iran's land borders and the Caspian Sea, according to CENTCOM's statement.
Admiral Brad Cooper, the CENTCOM commander, said the new unit would reinforce "the success of our ironclad blockade against Iran at sea", a campaign Washington credits with preventing Iran from exporting more than $25 billion worth of crude oil in recent months. The figure underlines how central the blockade has become to the American strategy: rather than relying only on strikes, the United States is trying to cut off the money and materiel that keep Iran's war effort running.
The announcement came alongside a fresh enforcement action at sea. CENTCOM said separately on Saturday that a US military aircraft had fired precision munitions at the stern of the St Kitts-flagged cargo vessel M/V Huda in the Gulf of Oman, disabling the ship after its civilian crew ignored repeated warnings and attempted to breach the blockade. The crew had been directed to abandon the targeted spaces before the strike, and the vessel had visited an Iranian port before trying to leave regional waters, CENTCOM said.
The Huda is the fifth merchant ship US forces have disabled since July for refusing to comply with the blockade, CENTCOM said, while 147 commercial vessels that obeyed directions were redirected without incident. The pattern shows a blockade that has grown steadily more forceful: ships that turn back are escorted away, while those that press on are now being fired upon.
Tehran answered the pressure with a signal of its own on Saturday. Brigadier General Hossein Mohebbi, a spokesman for the Islamic Revolutionary Guard Corps, told a press conference in Tehran that Iran's self-imposed limit of 2,000 kilometres on the range of its ballistic missiles "has been lifted". The ceiling had been presented for years as a deliberate restraint, and its removal suggests Iran may seek to develop missiles able to reach more distant targets. Mohebbi added that Iran would "demonstrate these capabilities in practice" rather than make statements, and he did not say whether Iran already possessed missiles capable of exceeding the old limit. No such weapon has been publicly demonstrated, and the 2,000-kilometre range already puts parts of Greece and the Balkans, the entire Arabian Peninsula, the Levant and most of Egypt within reach.
The exchange of moves comes against a backdrop of rising tension on several fronts at once. On Friday, President Donald Trump confirmed that American forces had carried out what he described as minor strikes on Iran, and Iran's official news agency IRNA reported the sound of explosions on Qeshm Island and in the cities of Jask, Sirik and Bandar Abbas on Saturday, without an official explanation. The Revolutionary Guard's navy also said on Saturday that two oil tankers had struck mines near the Strait of Hormuz, days after similar incidents involving tankers using unauthorised routes through the strait.
Analysts say the land task force points to where the conflict may head next. Michael Mulroy, a former US deputy assistant defence secretary for the Middle East, told Al Jazeera the unit's job would be to work out where weapons systems were coming in, how they could be cut off, and how Iran was transporting its energy. He added that if Mr Trump ordered an escalation, the targets would probably be economic and infrastructure sites, unlike Operation Epic Fury, the earlier campaign that focused mainly on military targets, as part of a comprehensive plan to cut the regime off from its ability to fight and to fund itself.
Diplomacy has not stopped, even as the pressure grows. Qatar has been mediating between Washington and Tehran, and Mr Trump has said Tehran still wants a deal, but the two sides remain far apart on the core questions: Iran insists the blockade must end and the Strait of Hormuz must reopen on its terms, while the United States is pressing ahead with enforcement at sea and now on land.
What happens next will depend on whether either side blinks. If the blockade tightens further and Iran answers with longer-range missiles or more attacks on shipping, the eight-month war could enter a more dangerous phase, with oil markets and the wider region caught in the middle. If the pressure instead forces Tehran back to the negotiating table, the task force could prove to have been the lever that ended the standoff. For now, both sides are raising the stakes — Washington by closing the land routes, and Tehran by lifting the limits on its missiles.
