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Operation Praying Mantis
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Operation Praying Mantis

1988 US-Iran naval battle; largest US surface engagement since WWII; doctrinal precedent for 2026 operations.

On 18 April 1988, Operation Praying Mantis set the US Navy's modern precedent for striking Iranian naval assets after mining incidents in The Persian Gulf.

Last refreshed: 22 September 2026 · Appears in 1 active topic

Key Question

Why does every Iran-US naval confrontation get compared to a 1988 battle?

Timeline for Operation Praying Mantis

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Background

Operation Praying Mantis was a one-day US naval operation during the Iran-Iraq War. It followed the mining of USS Samuel B. Roberts and targeted Iranian oil platforms, frigates and smaller vessels in The Persian Gulf. It remains the largest US surface naval engagement since The Second World War.

The operation formed part of Operation Earnest Will, the US mission to protect Kuwaiti tanker traffic. Its significance rests on the balance it attempted: destroy enough Iranian naval capability to answer a mine attack without widening the conflict into a broader war.

That history remains relevant because the 2026 conflict again made Hormuz mining, naval strikes and Commercial shipping central to US-Iran confrontation. The US seizure of the Iranian cargo ship Touska on 19 April 2026 was described as the first kinetic seizure of an Iranian ship since the 1988 Tanker War. On 25 May, US forces struck Iranian mine-laying boats at Bandar Abbas.

Common Questions

Reference

What ships did the US sink in Operation Praying Mantis?
The US Navy sank the Iranian frigates Sahand and Sabalan, and destroyed Iranian oil platforms Sassan and Sirri, as well as several smaller vessels. The US lost no ships.Source: US Naval Institute historical record
What happened in Operation Praying Mantis in 1988?
On 18 April 1988, the US Navy launched a one-day retaliatory operation in The Persian Gulf after Iran mined the USS Samuel B. Roberts. US forces destroyed Iranian oil platforms and sank two Iranian frigates, suffering no ships lost. It remains the largest US surface naval engagement since The Second World War.Source: US Naval Institute / CENTCOM historical record
Did Operation Praying Mantis end the Iran-Iraq War?
No. Praying Mantis lasted one day and weakened Iranian naval forces but was not the direct cause of the Ceasefire. The Iran-Iraq War ended in August 1988, roughly four months after Praying Mantis, through a UN-brokered Ceasefire.

Recently resolved

When was the last Iranian warship sunk before 2026?
The last Iranian warship sunk in combat before 2026 was during Operation Praying Mantis in April 1988. In 2026, the frigate IRIS Dena became the first Iranian surface combatant sunk since then, torpedoed by a US submarine in the Indian Ocean.Source: CENTCOM
Is the mine dispute in the Strait of Hormuz in July 2026 like the mining that triggered Operation Praying Mantis in 1988?
Not exactly. The 1988 mining of the USS Samuel B. Roberts was unambiguous and triggered immediate US retaliation. In July 2026, Iran's claim that tankers struck mines was called false by CENTCOM, while UKMTO separately confirmed an actual mine near the Hormuz Traffic Separation Scheme a day later, a more contested picture than 1988.Source: Lowdown
How does the 2026 US-Iran naval campaign compare to Praying Mantis?
Praying Mantis destroyed a handful of ships in one day with deliberate restraint; by May 2026 CENTCOM reported over 130 Iranian vessels destroyed or disabled across weeks of operations, with a US fighter disabling an Iranian tanker by gunfire. The 2026 campaign surpasses Praying Mantis in scale, duration, and tactical method.Source: Lowdown Iran Conflict 2026 coverage
What was Operation Earnest Will and how does it relate to Project Freedom?
Operation Earnest Will (1987–88) was the US mission to escort Kuwaiti tankers through The Persian Gulf during the Iran-Iraq War; Praying Mantis was conducted under it. Project Freedom, launched in May 2026 with 15,000 US personnel, is considered its institutional successor: a named US escort operation in the same waterway, at FAR greater scale.Source: Lowdown Iran Conflict 2026 coverage
Why is Operation Praying Mantis relevant to the 2026 Iran conflict?
Praying Mantis is cited as the last time the Iranian Navy lost a surface combatant before 2026, and as the doctrinal template for US retaliatory action against Iranian naval forces in The Persian Gulf. The USS Spruance seizure of the Touska in April 2026 was described as the first kinetic seizure of an Iranian vessel since the 1988 Tanker War.Source: Lowdown Iran Conflict 2026 coverage
Source Material
Operation Praying Mantis — Naval History and Heritage CommandOperation Praying Mantis