The maritime threat south of Hormuz has not eased with the Gulf de-escalation. US Maritime Advisory 2026-006, which covers the Red Sea, Bab el-Mandeb Strait, Gulf of Aden, Arabian Sea and Somali Basin, supersedes the earlier 2025-012 and runs to 22 September 2026.
- **The standing threat was demonstrated this month.** Separate open-source reporting describes Houthi missile strikes on two commercial vessels in the Gulf of Aden on 8-9 June, the M/V Tavvishi and the M/V Norderney, both targeted because their operating companies had called at Israeli ports. US Central Command reported destroying a Houthi drone, two land-attack cruise missiles and a launcher over the Gulf of Aden on 9 June. - **The targeting logic has widened.** The advisory notes that vessels with Israeli, US or UK association, and any vessel in a fleet whose operating company has called at an Israeli port, could be at high risk. That extends interdiction from flag-state to corporate beneficial ownership, which is harder for a single voyage to escape. - **The advice is operational.** MARAD advises US-flagged vessels to consider turning off AIS transponders in high-risk areas where it does not compromise navigational safety.
**Operator implication.** Any maritime, yacht or expatriate-movement task touching the southern Red Sea or Gulf of Aden should treat the threat as live, not residual. Map client and charter exposure by corporate links, not just the flag flying that day. For principals routing energy or cargo via the western chokepoint, factor the advisory into duty-of-care briefings and keep the AIS-discipline question on the table with masters.
