Protracted US–Iran Air and Maritime Campaign Risks Limited but Real Hormuz Closure Episodes
Theater: Strait of Hormuz
Time horizon: 30d
Published: 2026-08-01
Moderate confidence (65%)
Risk direction: escalatory · Impact: CRITICAL
Executive summary
Over the next 30 days, a sustained U.S.–Iran confrontation is likely to evolve into a rolling air and maritime campaign in which Iran intermittently disrupts traffic in the Strait of Hormuz through missile threats, naval harassment, and mine-laying, without attempting a full, sustained closure. The U.S. and allies will respond with convoy operations, mine countermeasures, and intensified strikes on Iranian coastal and naval assets, leading to periodic windows of elevated danger and rerouting. This will materially cut effective spare export capacity and normalize higher wartime shipping and insurance costs. Confirmation would be multiple documented shipping attacks, temporary route suspensions, and deployment of multinational naval task forces; denial would be a…
Key indicators we're watching
- Iran’s explicit proxy plan to 'disrupt oil supplies and shipping' upon resumption of U.S. strikes
- Militarization of Hormozgan and movement of IRGC missile assets to tunnel positions
- US evacuations of Gulf bases indicating expectation of sustained high-intensity fire exchanges
- Historical Iranian use of harassment and partial disruptions rather than absolute, prolonged closure
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Forecasts are generated automatically from open-source signal data (event tracking and conflict telemetry) with confidence calibrated against historical outcomes. Read the full methodology →