Uploaded May 2026 | Updated September 2026, 2 weeks ago
In 1987, the Strait of Hormuz was on the brink of collapse. As the Iran-Iraq War spilled into the Persian Gulf, Iranian gunboats, mines, missiles, and fast-attack craft threatened one of the world’s most important oil routes. To keep tankers moving, the U.S. launched Operation Earnest Will, reflagging Kuwaiti tankers and escorting them with American warships. But when the tanker MV Bridgeton struck an Iranian mine near Farsi Island, Washington realized convoy protection alone was not enough.
That led to Operation Prime Chance, a covert campaign combining Navy SEALs, Special Warfare Combat Crewmen, and the Army’s elite 160th Special Operations Aviation Regiment, the Night Stalkers. Operating from converted oil barges in the Persian Gulf, U.S. forces used patrol boats, night-vision surveillance, and MH-6/AH-6 Little Bird helicopters flying just feet above the water to hunt Iranian minelayers before they could shut down the Strait.
The operation’s defining moment came when American helicopters caught the Iranian ship Iran Ajr dropping mines under cover of darkness. AH-6 gunships attacked, SEALs and special boat units boarded the vessel, 26 Iranians were captured, nine mines were seized, and the ship was destroyed. The campaign later helped set the stage for Operation Praying Mantis, one of the largest U.S. naval actions since World War II, after the USS Samuel B. Roberts was nearly sunk by a mine.
Operation Prime Chance proved that keeping the Strait of Hormuz open did not require full-scale war. It required layered deterrence: protected convoys, covert interdiction, constant surveillance, and precise retaliation. Nearly 40 years later, with Iran now fielding drones, anti-ship missiles, mines, and swarms of fast boats, Prime Chance remains a possible blueprint for defending the world’s most vital oil chokepoint.
- As images and footage of actual events are not always available, Dark Docs sometimes utilizes similar historical images and footage for dramatic effect. I do my best to keep it as visually accurate as possible. All content on Dark Docs is researched, produced, and presented in historical context for educational purposes. We are history enthusiasts and are not always experts in some areas, so please don't hesitate to reach out to us with corrections, additional information, or new ideas. -
In 1987, the Strait of Hormuz was on the brink of collapse. As the Iran-Iraq War spilled into the Persian Gulf, Iranian gunboats, mines, missiles, and fast-attack craft threatened one of the world’s most important oil routes. To keep tankers moving, the U.S. launched Operation Earnest Will, reflagging Kuwaiti tankers and escorting them with American warships. But when the tanker MV Bridgeton struck an Iranian mine near Farsi Island, Washington realized convoy protection alone was not enough.
That led to Operation Prime Chance, a covert campaign combining Navy SEALs, Special Warfare Combat Crewmen, and the Army’s elite 160th Special Operations Aviation Regiment, the Night Stalkers. Operating from converted oil barges in the Persian Gulf, U.S. forces used patrol boats, night-vision surveillance, and MH-6/AH-6 Little Bird helicopters flying just feet above the water to hunt Iranian minelayers before they could shut down the Strait.
The operation’s defining moment came when American helicopters caught the Iranian ship Iran Ajr dropping mines under cover of darkness. AH-6 gunships attacked, SEALs and special boat units boarded the vessel, 26 Iranians were captured, nine mines were seized, and the ship was destroyed. The campaign later helped set the stage for Operation Praying Mantis, one of the largest U.S. naval actions since World War II, after the USS Samuel B. Roberts was nearly sunk by a mine.
Operation Prime Chance proved that keeping the Strait of Hormuz open did not require full-scale war. It required layered deterrence: protected convoys, covert interdiction, constant surveillance, and precise retaliation. Nearly 40 years later, with Iran now fielding drones, anti-ship missiles, mines, and swarms of fast boats, Prime Chance remains a possible blueprint for defending the world’s most vital oil chokepoint.
- As images and footage of actual events are not always available, Dark Docs sometimes utilizes similar historical images and footage for dramatic effect. I do my best to keep it as visually accurate as possible. All content on Dark Docs is researched, produced, and presented in historical context for educational purposes. We are history enthusiasts and are not always experts in some areas, so please don't hesitate to reach out to us with corrections, additional information, or new ideas. -
