Iran’s newly installed supreme leader has vowed to continue blocking the Strait of Hormuz in retaliation for U.S.–Israeli strikes, turning a critical maritime chokepoint into a strategic pressure point. The closure of this narrow waterway, through which roughly one‑fifth of global oil supply moves, has raised concerns over a potential worldwide energy crisis.
Iran has signaled that the restrictions specifically target Western vessels and their supporters, but according to a report by gCaptain, the pattern of attack suggest actions intended to disrupt maritime trade rather than directly targeting Western‑owned vessels.
The Joint Maritime Information Center has issued an advisory stating that the threat is not confined to the Strait of Hormuz itself. Attacks are now occurring throughout a broader region of the Arabian Gulf, prompting authorities to elevate the maritime threat level to “critical” across the Arabian Gulf, the Strait of Hormuz, and the Gulf of Oman.
The closure of the Strait of Hormuz has wide-reaching consequences for global trade. With shipping in the region at a standstill, significant backlogs are forming. World Shipping Council President & CEO Joe Kramek said, “Disruption in the region will ripple across global supply chains, with longer voyages, delays, and the rewiring of shipping networks to keep trade flowing.”
Clearing these delays could take months to clear even after hostilities ease. Sea‑Intelligence outlined a scenario in which a prolonged closure would create cascading delays across deep‑sea networks. The analyst wrote in their assessment, “Vessels currently enroute to the Persian Gulf will be forced to abort their rotations, leading to sudden cargo displacement at alternate transshipment hubs outside the chokepoint e.g., Salalah, Colombo, and Singapore. This sudden diversion will inevitably cause yard density to spike, degrading terminal productivity and creating berthing delays for mainline vessels on completely unrelated trade lanes.”
They further emphasized that the Persian Gulf is “structurally a net import region,” which adds another layer of disruption. As they noted, “these deep-sea services typically load empty containers to reposition back to Asian manufacturing hubs. Trapping over 200,000 TEU of capacity simultaneously starves Asian export hubs of vital equipment, potentially causing container shortages in the Far East.”
The International Maritime Organization (IMO) will convene an extraordinary council meeting on March 18-19 to discuss the impact on shipping and seafarer safety.
Source: gCaptain, Sea-Intelligence, World Shipping Council, International Maritime Organization