Naval Mine Threat Resurfaces as History Repeats Itself

The USS Samuel B. Roberts, a guided missile frigate, was severely damaged by an Iranian mine 38 years ago today in the Strait of Hormuz. The attack, which occurred during Operation Earnest Will, nearly sank the vessel but was thwarted by its crew’s rapid response. This incident serves as a stark reminder of the enduring threat posed by naval mines, a weapon that remains inexpensive yet highly effective against advanced military forces.

The 1987 mining of the Roberts highlighted a critical vulnerability in the U.S. Navy’s mine-warfare capabilities. At the time, American ships were unprepared for the Iranian minelaying tactics, which caught U.S. planners off guard. The attack on the Roberts, part of a series of Iranian mine deployments, underscored the need for stronger mine-countermeasures. In response, the Pentagon launched Prime Chance, a covert operation involving Navy SEALs and Army special forces, to disrupt Iranian mining efforts. Despite these efforts, Iran continued to pose a threat, leading to Operation Praying Mantis—a retaliatory strike that further demonstrated the ongoing challenge of mine warfare.

Today, history appears to be repeating itself. Iran has again deployed mines in the Strait of Hormuz, disrupting shipping lanes and catching the Trump administration by surprise. The U.S. Navy’s four Avenger-class minehunters had been redeployed elsewhere, leaving a gap in its ability to counter Iranian mining operations. This latest incident raises questions about whether the Navy has learned from past mistakes. Despite decades of warnings and wargames emphasizing the need for robust mine-warfare capabilities, the service remains under-resourced in this critical area. The Roberts’ ordeal and its aftermath offer timeless lessons: even advanced naval forces are vulnerable to low-cost, high-impact threats like mines, and neglecting preparedness can have costly consequences.