Against a background of escalating geopolitical tensions in the Middle East, international law does not permit Iran to obstruct transit passage through an international strait such as the Strait of Hormuz (the “Strait”). Yet, the mere declaration of closure (let alone threats issued by Iran’s Islamic Revolutionary Guard Corps (“IRGC”)) has unsettled markets and disrupted shipping routes. What was long-regarded as a dependable conduit of global trade has become a narrow passage burdened with immense consequences for the global shipping world which, once again, draws attention to the significant risks and disruption associated with a full closure of the Strait.
This article serves as a reminder to stakeholders of the legal and commercial issues likely to arise, as previously set out in detail in our WFW July 2025 article series covering contractual issues, force majeure and repudiation of contract, frustration and insurance implications.




