Strait of Hormuz Crisis: Comparing the 1980s Tanker War to Today’s US-Iran Naval Conflict

On April 20, 2026, the US fired upon and seized an Iranian-flagged container ship near the Strait of Hormuz amid a naval blockade of Iranian ports. This incident echoes the 1980s Tanker War between Iran and Iraq, where both nations targeted each other’s oil tankers in the same strategic waterway.

The Strait of Hormuz remains a critical chokepoint for global oil supplies, and renewed hostilities between the US and Iran threaten to disrupt energy markets and international shipping. Understanding the parallels and differences between the two conflicts sheds light on the current geopolitical stakes.

The 1980s Tanker War: A Timeline of Maritime Conflict

The Iran-Iraq War began in 1980 with Iraq’s invasion of Iran. By 1984, the conflict extended to the Gulf, as Iraq attacked Iranian oil tankers to cripple Iran’s economy. Iran retaliated by targeting Iraqi and allied tankers. Both sides threatened to close the Strait of Hormuz but refrained due to economic dependencies.

In 1986, Kuwait requested foreign naval escorts after Iranian attacks on its ships. The Soviet Union initially responded, but the US launched Operation Earnest Will in 1987, reflagging Kuwaiti tankers under the US flag to provide protection. This led to a shadow naval war involving mines, special operations, and strikes against Iranian forces.

The conflict escalated with incidents like the USS Samuel B Roberts striking an Iranian mine in 1988, prompting the US to launch Operation Praying Mantis to retaliate. The Tanker War ended in August 1988 following a UN-brokered ceasefire, with hundreds of attacks on shipping and significant casualties among merchant sailors.

Current Strait of Hormuz Hostilities: What’s Happening Now?

Tensions reignited in 2026 when Iran closed the Strait of Hormuz to all vessels after US and Israeli bombings. The Islamic Revolutionary Guard Corps (IRGC) asserted control, requiring ships to obtain clearance to pass. Shipping through the strait plummeted by 95%, causing oil prices to surge above $100 per barrel.

Initially, Iran allowed ‘friendly’ ships to pass for a toll, but after the US imposed a naval blockade on Iranian ports on April 13, Iran tightened restrictions, barring all foreign vessels until the blockade ends. The US has since intercepted multiple Iran-linked vessels, including the seizure of the container ship Touska.

Iran has also fired on and captured several merchant vessels, including Indian-flagged ships, citing unauthorized operations. The situation remains volatile, with both sides escalating maritime enforcement and military actions.

Parallels Between the 1980s Tanker War and Today’s Conflict

• Both conflicts involve disruption of shipping in the Strait of Hormuz, a vital global oil transit route.
• Oil prices have surged in both periods due to supply uncertainties, with current prices exceeding $100 per barrel.
• Sea mines pose a significant threat in both conflicts, although no current mine damage has been reported yet.
• US naval forces have played a central role in escorting and intercepting vessels to protect shipping lanes.

A relatively small amount of naval disruption, whether mining, harassment, missile threats, or attacks on tankers, can create real strategic and economic consequences, especially in a chokepoint like the Strait of Hormuz.—John Phillips, British security adviser

Key Differences Shaping the Current Maritime Crisis

Unlike the 1980s, when NATO allies joined the US in escorting tankers and minesweeping, today’s US allies have largely declined to participate, wary of being drawn into a wider war. This has left the US more isolated in its enforcement efforts.

The 1980s Tanker War was part of a broader Iran-Iraq land conflict, while today’s tensions are primarily between Iran and the US-Israel alliance, focusing on deterrence and signaling rather than full-scale naval warfare.

Iran’s military posture has evolved to a more offensive asymmetric strategy, employing missiles, drones, cyberattacks, and energy coercion. Despite sanctions and internal challenges, Iran’s leadership remains resilient, prepared to endure prolonged conflict.

Iran and the IRGC have revolutionary fervour, meaning they can tolerate pain far longer than most American planners expect.—Adam Ereli, former US ambassador to Bahrain

Looking Ahead: What the Strait of Hormuz Crisis Means for Global Stability

The Strait of Hormuz remains a flashpoint with the potential to disrupt global energy markets and international trade. Limited naval actions here can have outsized economic and strategic impacts worldwide.

As the US and Iran continue their maritime standoff, the risk of escalation persists. The absence of broad international naval support for minesweeping and escort operations complicates efforts to stabilize the region. The world watches closely as this critical waterway becomes a focal point of geopolitical tension.