The largest U.S. Navy surface engagement since World War II, it contributed to ending the Iran–Iraq War by pressuring Iran toward a ceasefire.
Key Facts
- Date
- 18 April 1988
- Trigger incident
- USS Samuel B. Roberts struck a mine on 14 April 1988
- Iranian assets destroyed/damaged
- 2 oil platforms, 2 frigates, 1 fast-attack craft, several armed boats
- U.S. casualties
- 2 Marine aviators killed in helicopter crash
- ICJ ruling date
- 6 November 2003
- Naval distinction
- First U.S. anti-ship missile exchange since World War II
By the Numbers
Location
Cause → Event → Consequence
On 14 April 1988, the USS Samuel B. Roberts struck an Iranian mine in international waters during Operation Earnest Will, which protected reflagged Kuwaiti tankers. The explosion pierced the hull and nearly sank the frigate. Serial numbers on recovered mines matched those seized from an Iranian barge the previous September, prompting U.S. military officials to plan a retaliatory strike.
On 18 April 1988, U.S. forces attacked Iranian naval targets across the Persian Gulf in what became the largest American naval surface engagement since World War II. The operation destroyed two Iranian oil platforms and sank or damaged two frigates, a fast-attack craft, several armed boats, and downed two fighter jets. Two U.S. Marine aviators died when their helicopter crashed into the Gulf.
The operation pressured Iran into agreeing to a ceasefire with Iraq that summer, effectively ending the eight-year Iran–Iraq War. Iran subsequently sued the United States in the International Court of Justice, alleging breach of the 1955 Treaty of Amity; the ICJ dismissed the claim in 2003 but found the operation could not be justified as necessary for U.S. security interests.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
1 belligerent