US steps up pressure on Iran, shipping hit

US outlines tougher economic pressure on Iran

U.S. Treasury Secretary Scott Bessent said the United States is preparing to apply economic measures against Iran "like have never been seen" in the history of economic isolation. He described the effort as aimed at intensifying Iran’s economic isolation and stated that additional announcements on the measures are expected next week. The comments signal a planned expansion of existing economic pressure and place Iran’s financial and trade links under renewed scrutiny.

Bessent’s remarks frame the economic campaign as a central pillar of Washington’s current approach to Iran. While specific steps were not detailed, the references to unprecedented measures suggest a broad scope targeting Iran’s ability to engage in international commerce. Market participants and regional actors are now watching for formal policy statements and implementation details in the coming week.

Military posture and carrier rotation in the region

In parallel with the economic moves, U.S. Defense Secretary Pete Hegseth stated that the U.S. military can maintain a naval blockade of Iran "indefinitely." He said the Navy plans to achieve this by rotating ships in and out of the region, underscoring an intention to sustain maritime pressure around Iranian ports over an extended period.

As part of this posture, the USS George Washington carrier group is heading to the Middle East to replace the USS Abraham Lincoln. Officials described the carrier swap as previously planned, noting that the Abraham Lincoln has been deployed for more than 250 days. The transition is intended to keep a carrier strike group present in the area while allowing the outgoing vessel to leave after an extended deployment.

Attacks on ADNOC vessels in the Strait of Hormuz

The tightening U.S. stance coincides with renewed security incidents affecting commercial shipping in the Strait of Hormuz, a vital route for energy exports. Abu Dhabi National Oil Company (ADNOC) said two of its vessels were attacked while transiting the strait on Thursday evening. ADNOC reported no injuries from the incidents and said the situation had been brought under control.

The U.K. Maritime Trade Operations reported that the tankers involved were struck by unmanned aerial vehicles while making outbound transits of the strait. The vessels sustained minor damage, and all crew members were reported safe and accounted for. The combination of drone strikes and heightened military activity adds to operational risks for shipowners and charterers using the corridor.

Implications for maritime traffic and markets

These developments highlight continued vulnerability of shipping in and around the Strait of Hormuz as the U.S. tightens both economic and military pressure on Iran. A U.S. naval blockade, coupled with drone attacks on commercial vessels, increases uncertainty over the safety and cost of transiting the waterway. Energy producers and traders face a more complex risk environment as they assess routing, insurance, and scheduling decisions.

Financial markets have been reacting to the evolving situation and the prospect of intensified economic measures on Iran. Concerns center on potential disruption to regional flows of crude and refined products if security incidents escalate or if trade routes are further constrained. With additional U.S. policy announcements expected next week, both energy and shipping markets are likely to remain sensitive to new signals on sanctions and military deployments.