Race to Reopen Hormuz: Allied Navies Prepare Mine Clearance and Escort Mission

A multinational naval mission to reopen and secure the Strait of Hormuz is taking shape as the 2026 Iran war moves toward a settlement. The plan, led jointly by France and the United Kingdom and backed by a wider coalition, would clear sea mines, escort merchant vessels, and run surveillance patrols to restore confidence among crews and shipping insurers.

The Strait of Hormuz has been functionally closed since 28 February 2026, when Iran's Islamic Revolutionary Guard Corps issued passage warnings, attacked and boarded merchant ships, and laid sea mines in the channel. Before the conflict, roughly a quarter of the world's seaborne oil and a fifth of global liquefied natural gas moved through the strait, so the closure pushed energy markets into a prolonged crisis. Traffic that once exceeded 130 ships per day collapsed, and dozens of tankers anchored offshore waiting for safe conditions.

France and Britain have been preparing a coalition response for months. President Emmanuel Macron first raised the idea in March 2026, while the war was still active, proposing that warships escort tankers and container ships through the chokepoint once fighting subsided. Since then, joint French and British planning has widened to include nations far beyond Europe, drawing in Australia, South Korea, Japan, Bahrain, Qatar, Canada, and more than a dozen European states. A defense ministers meeting convened by the two countries in May 2026 brought together 38 nations.

The coalition framed the effort publicly in mid-June. In a statement welcoming the tentative deal to extend the ceasefire and reopen the waterway, France, the United Kingdom, Germany, Japan, Italy, and later Canada said they were committed to playing their part in restoring unconditional and unrestricted freedom of navigation. They described the plan as a strictly defensive and independent mission focused on reassuring commercial shipping and conducting mine clearance.

The operational outline is detailed. France's nuclear-powered aircraft carrier Charles de Gaulle is already in the region, having sailed first to the eastern Mediterranean in early March before transiting the Suez Canal into the Arabian Sea. Macron told President Donald Trump at the G7 summit that French fighter aircraft could begin observation flights over the strait almost immediately, with frigates following within 48 hours and the carrier within two to three days, provided the deployment is requested. Other navies positioned to contribute quickly include the Netherlands, Italy, and the United Kingdom. The Royal Navy has publicized its mine countermeasures expertise, showcasing the RFA Lyme Bay off Gibraltar last month as it stood ready for deployment.

Mine clearance is the central technical task. The devices laid in the strait can be rocket-propelled, cabled, or rest on the seabed and detonate in response to sound, movement, or light. Crews would work to locate and neutralize them so insurers and shipowners regain confidence. Trump has said some mines have already been found, that the search for others continues, and that the strait is partially open.

The coalition can draw on recent combat experience. French, American, British, and other crews escorted civilian ships through Houthi attacks in the Red Sea, where French frigates used guns, cannons, and air-defense missiles to repel strikes. The frigate Alsace downed three ballistic missiles in 2024 while protecting a container ship. If the ceasefire holds, naval crews expect fewer threats in Hormuz, but with Iran still believed to hold stocks of missiles and drones, warships' defensive systems could be called on if the truce collapses.

Washington has been cool to the idea of a large allied presence. Trump told Macron on 16 June that he does not see a need for much help because he expects the strait to reopen under the tentative Iran deal, though he conceded that a ship or two from a few countries would be welcome.

As of mid-June 2026, the coalition has the assets, the planning, and the political backing in place, but no full deployment into the strait has yet been ordered.