# [24H] US–Iran naval blockade operations in and around Strait of Hormuz intensify but stop short of direct ship-to-ship combat

*Issued Tuesday, May 12, 2026 at 3:35 PM UTC — Hamer Intelligence Services Desk*

**Issued**: 2026-05-12T15:35:05.195Z (2h ago)
**Expires**: 2026-05-13T15:35:05.195Z (22h from now)
**Category**: MILITARY | **Confidence**: 70% | **Impact**: HIGH
**Risk Direction**: escalatory
**Affected Regions**: Strait of Hormuz, Gulf of Oman, Arabian Sea, Persian Gulf
**Affected Assets**: Commercial tankers, Dry bulk carriers, US Navy surface combatants, IRGC Navy and IRIN vessels
**Permalink**: https://hamerintel.com/data/forecasts/9280.md
**Source**: https://hamerintel.com/forecasts

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## Prediction

Over the next 24 hours, US naval forces enforcing the blockade on Iran are likely to increase the number of vessel diversions and boardings in the Arabian Sea and Gulf of Oman but will probably avoid kinetic engagements with Iranian naval units. Rules of engagement will emphasize disabling non-compliant commercial ships rather than engaging Iranian state vessels to limit escalation while maintaining pressure. IRGC naval and coastal units will shadow US assets and conduct additional drills but are unlikely to initiate direct attacks given current deterrence balance. The operating environment will remain highly tense, with elevated risk of miscalculation but no deliberate shift to open naval combat expected in this window.

## Drivers

- CENTCOM confirmation of 65 vessels diverted and 4 disabled under current blockade
- Reports of Strait of Hormuz effectively blocked and oil above $107
- IRGC anti-heliborne and defensive drills around Tehran indicating heightened readiness but not offensive posture
- Emerging trend of U.S.–Iran war stalemate driving covert escalation and hedging rather than immediate open battle