The U.S. is racing to reopen the Strait of Hormuz as Iran threatens one of the world’s most critical shipping lanes, with President Donald Trump warning Tehran against further escalation. In recent days, two Avenger-class mine countermeasure ships, USS Chief and USS Pioneer, were tracked sailing west from Southeast Asia toward the Middle East.
The urgency is plain in the numbers. The Navy retired its four Bahrain-based minesweepers last year, leaving the service to depend on a smaller fleet of unmanned systems and a limited mix of legacy vessels that were not all positioned in the region when the crisis began. At the start of the standoff, the Navy’s remaining minesweepers were based in Japan, not the Persian Gulf.
Iran has laid mines and threatened commercial traffic in the narrow waterway, and multiple news outlets have reported at least a dozen mines in the strait, citing intelligence assessments. The merchant vessel Seaway Hawk was also sailing in the Arabian Gulf while transporting decommissioned U.S. Navy Avenger-class Mine Countermeasures Ships, a reminder of how thin the U.S. mine-clearing posture has become even as it tries to force the lane back open.
The Strait of Hormuz carries a significant share of global oil, which is why mine clearing there is not a side mission but a market event with global reach. The U.S. has imposed a naval blockade on Iranian ports, and Iran has answered with attacks on commercial vessels, seizures of ships and threats to close the waterway entirely.
That friction is the story now: the Navy is trying to clear a passage it no longer has the same tools to protect, while Tehran has turned the strait into leverage. The question is not whether the route matters. It is whether the U.S. can reopen it fast enough to blunt the next move.