Threat Update > The Strait of Hormuz under US-Iran stand-off

The Strait of Hormuz

2 September, 14:33 UTC

Date issued: 2nd September 2026

This document has been approved for distribution by Ambrey Analytics Ltd.

“The Strait of Hormuz remains navigable but highly contested and high risk, with daily commercial transits continuing despite Iranian interference and vessel damage. International shipping retains routing options, including a US-facilitated route along the Omani coastline with military support, while coordination with Iranian authorities carries potential US sanctions-compliance implications. Given the continued US-Iran military confrontation and the risk of miscalculation or further escalation, shipping should maintain heightened vigilance and carefully assess security and sanctions exposure before transiting the Strait.”

EXECUTIVE SUMMARY

  • Strait of Hormuz transits remain contested and high risk, though transits proceed daily. 
  • The US and Iran are in a stand-off position, launching calibrated attacks in response to specific developments, not seeking full escalation. 
  • OFAC has issued guidance that vessels or companies engaging Iranian authorities for Strait of Hormuz transits face the risk of non-compliance under US sanctions programs. 
  • Diplomatic efforts have not yielded further results since the end of the US-Iran Memorandum of Understanding. 
  • A risk of miscalculation persists, with potential for flashpoint escalation. 
  • Shipping is advised to coordinate Strait of Hormuz transits with relevant military authorities. 
Map of the Strait of Hormuz and surrounding Gulf waters highlighting areas of maritime security incidents and elevated risk

SITUATION

The Memorandum of Understanding between the US and Iran was understood to have ended on 8 July 2026. On that day, the US recommenced airstrikes against Iranian military targets. The Iranian retaliation focused on targeting US military infrastructure across the Arabian Peninsula. Critical infrastructure in Kuwait was also targeted in an assessed effort to showcase what future impact the continued Arabian support for US operations could have. This round of escalation came to an end on 30 July, the last time US airstrikes were recorded in this period. 

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