Weekly Maritime Intelligence Brief Updated 23 March 2026

Signs of potential de-escalation are emerging in the U.S.–Iran conflict — but the operating environment for commercial shipping remains exposed to rapid reversals.

In this week’s Maritime Intelligence Brief, we track how a five-day postponement of planned U.S. strikes is being framed as a diplomatic window, with discussions linked to wider conditions including navigation and stability around the Strait of Hormuz.

We also examine how Russian shadow fleet logistics continue to adapt under sanctions pressure, including a case study of the tanker Sea Horse (IMO 9262584) and suspected deceptive AIS behaviour during a Cuba-bound delivery pattern.

Alongside the lead stories, this edition includes a concise global incident picture (Indian Ocean / South East Asia / West Africa) and key intelligence headlines relevant to ship operators, insurers, and security teams.

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