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IRGC strikes another Hormuz tanker as Trump weighs annihilation policy

9/18/2026

The Strait of Hormuz sits at the narrow neck of global oil transit, and any incident there reaches energy desks before most other markets have time to react.

The Islamic Revolutionary Guard Corps announced an attack on another tanker in the waterway. Former President Donald Trump is reportedly weighing whether to pursue a policy of annihilation in response.

The word "another" in the IRGC's own announcement places the event inside a series rather than as an isolated incident. That distinction matters for how markets price duration risk.

Tanker interdiction in the strait follows a recurring pattern in Gulf tension cycles: each strike resets insurance premiums on vessels transiting the corridor, and a sequence of strikes begins to alter routing and underwriting decisions sector-wide.

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