A new U.S. task force targeting Iran’s overland and Caspian Sea supply routes is unlikely to seal the country’s borders without help from neighbouring states, analysts told Al Jazeera, challenging President Donald Trump’s claim that Iran has been largely cut off.

“Very little gets into, or out of, Iran!” Trump wrote on Truth Social on Sunday, citing Task Force Iron Gate and the U.S. naval blockade of the Strait of Hormuz.

According to Al Jazeera’s reporting, U.S. Central Command says the Tampa, Florida-based unit will coordinate with other government agencies to prevent advanced weapons, dual-use technologies, sanctioned materials and illegal revenue streams from moving across Iran’s land borders and the Caspian Sea.

Andreas Krieg, an associate professor of defence studies at King’s College London, described the task force as primarily an intelligence coordination operation rather than a force capable of policing Iran’s extensive frontiers.

“The objective is not necessarily to stop every shipment, but to make Iranian military procurement progressively more expensive, slower and riskier,” he told Al Jazeera.

Matthew Savill, director of military sciences at the Royal United Services Institute, said the mission would likely combine satellite imagery, drones, intercepted communications, financial intelligence and intelligence-sharing. Analysts also said it could support sanctions enforcement and pressure on foreign suppliers.

Regional cooperation remains a central obstacle. Krieg said Pakistan’s mediation between Washington and Tehran makes its open participation particularly unlikely, while Turkiye has little interest in turning its border with Iran into another confrontation. Other neighbours also face political constraints.

“Without these countries’ cooperation, Washington can disrupt individual networks but cannot effectively seal Iran’s borders,” Krieg said.

He also warned that intelligence gathering could lead to pressure for seizures, border closures or strikes against suspected logistical infrastructure in neighbouring countries, potentially widening the U.S.-Israel war on Iran. Those actions were presented as risks, not confirmed task-force operations.

Sources