Scatter a hundred sea mines across the Strait of Hormuz, and neither the USS Gerald R. Ford aircraft carrier nor a giant LNG tanker will likely chance coming close. That asymmetry sits at the heart of Iran's strategy in the Persian Gulf, where cheap, silent weapons have effectively paralyzed one of the world's most critical waterways.
Writing in the Washington Post, former British Royal Navy officer Alexander Wooley explained why mines are so effective despite being, as he put it, "uncool and unsexy," "Hvylya" reports. They are small, autonomous, leave-and-forget weapons that sit on or near the seabed with the patience of a sea urchin. Aircraft carriers and guided-missile destroyers are helpless against them, and historically, ships that go to assist a mined vessel frequently end up damaged or sunk themselves.
Iran has leaned into this advantage. After Trump gave Tehran 48 hours to reopen the strait, the regime responded by threatening to lay "various types of naval mines" throughout the Persian Gulf. U.S. intelligence officials reportedly suspect at least a dozen Maham 3 and Maham 7 limpet mines already lurk beneath the waterway.
Even bluffing about mine-laying can achieve strategic objectives. The mere possibility of mines forces shipping companies to halt transit, draws enormous resources from the opposing navy, and creates an environmental catastrophe risk if a loaded tanker gets holed below the waterline. The mine-damaged supertanker Texaco Caribbean leaked petroleum across the Gulf of Oman in 1987 - a reminder of what could happen on a far larger scale.
The weapon has been around for centuries, possibly first deployed by the Chinese more than six hundred years ago. But its effectiveness has only grown as the ships it targets have become more expensive and the global economy more dependent on narrow maritime chokepoints. A mine that costs thousands of dollars can stop a carrier worth billions.
Also read: Why cheap drone swarms pose a similar asymmetric threat that America's costliest weapons cannot answer.