History Repeating: 1980s Tanker War Shows Why Hormu Minesweeping Capability Gap Is Existential

The Strait of Hormuz is not new to war. In 1987-88, the US Navy conducted Operation Earnest Will to escort reflagged Kuwaiti tankers through the same waterway. The parallels to 2026 are instructive—and alarming.

Then and Now: The Pattern

In 1987, Iraq attacked Iranian oil tankers to damage Tehran's economy. Iran responded by mining the Gulf and attacking neutral merchant ships. The result: 130+ ships damaged, 546 sailors killed, tanker rates spiking 800%.

When Kuwait asked for foreign protection, the Soviet Union offered escorts first. Fearful of losing influence, the US rapidly reflagged Kuwaiti ships and deployed Navy escorts. But the Navy was unprepared for mine warfare.

In 2026, Trump calls for allied escorts and minesweepers. But seven nations (UK, France, Germany, Italy, Netherlands, Japan, Canada) pledged only vague "contributions" without specifying hardware. Meanwhile, four dedicated US minesweepers were decommissioned in 2025, and two of three littoral combat ships tasked to replace them are in Malaysia.

The Bridgeton Incident (July 24, 1987)

On the first escort mission, the massive tanker Bridgeton struck an Iranian contact mine in a freshly laid minefield. The ship's structure absorbed the blast—but the escorting destroyers and frigates, with no minesweeping assets, had to follow the damaged tanker in her wake, using the 85,000-ton vessel as a makeshift minesweeper.

The image went viral in military circles. It was a humiliation: the world's most advanced Navy, reduced to following a wounded merchant ship through a minefield.

The USS Samuel B Roberts (April 14, 1988)

Four months into escorts, the frigate USS Samuel B Roberts was transiting a minefield laid by Iran the night before. The ship's keel was broken, hull split 15 feet wide. According to records, only the main deck held the ship together.

Crew heroics saved the vessel—heavy steel cables lashed cracked sections—but it was a near-total loss. Ten sailors wounded. The message was clear: mines are asymmetric weapons that even superpower navies cannot defend against with armor and firepower alone.

The Real Cost: Minesweeping, Not Missiles

The Samuel B Roberts mine strike precipitated Operation Praying Mantis, a massive retaliation against Iranian oil platforms. It was hailed as a triumph: the first missile-to-missile surface battle in US Navy history, and a demonstration of integrated warfare across multiple services and platforms.

Naval historian Craig Symonds ranked it among the five most important US naval battles ever, alongside Midway. The US had shown it could project power thousands of miles away, integrate all services, and win decisively.

But here is the irony: the mine threat was not defeated. It was tolerated.

After Praying Mantis, the US required allied minesweeping assistance to continue escorts. Only Belgium, France, Italy, Netherlands, and the UK provided minesweepers. The US Navy itself had precious few assets—a chronic shortfall that has persisted to 2026.

Why Minesweeping Capability Was Never Restored

According to former US Navy captain Carl Schuster, mines were intentionally deprioritized in US defense budgets. The Navy came to rely on allies for minesweeping and never rebuilt the capability at home.

This worked during the post-Cold War era when the US had overwhelming power and allies were plentiful. But two trends changed the calculus:

First, allies are now reluctant. The UK, France, and Europe will not commit hardware to a US-led operation unless it aligns with their strategic interests. In 2026, European nations see no benefit in escalating against Iran and prefer to negotiate bilateral safe passage.

Second, mines are cheaper than ever. Drones carrying explosive payloads have made mine-laying in contested waters trivial. Iran can lay 100 mines with drones; the US cannot sweep them all with two minesweepers.

The 2026 Scenario: Mines vs. Firepower

Iran has mined the Strait of Hormuz (extent unknown). The US is deploying carrier strike groups and the USS Boxer with 2,500 Marines. But without minesweeping assets, those forces are constrained.

A US escort convoy cannot enter the strait without first clearing mines. But clearing requires slowness, sonar sweeps, and persistent presence—exactly the opposite of what a strike force offers. Once mines are cleared, Iran can lay more. The asymmetry is profound.

A Lesson Missed

In 1987, the Bridgeton using a warship as a minesweeper was treated as an embarrassment. Today, it is strategy. The USS Boxer and its escorts are functionally minesweeping with their hulls, betting that modern damage control and armor can absorb hits better than 1980s frigates.

But the bet has changed. Iranian drones and missiles have also improved. A larger warship hit by a mine risks the same catastrophic damage as the Samuel B Roberts, plus loss of a billion-dollar asset.

What Operation Earnest Will teaches: minesweeping cannot be deferred. It cannot be contracted to allies if they will not commit. And it cannot be compensated for by firepower.

The US learned this lesson in 1987. It has forgotten it by 2026.