By mid-May, the coalition had expanded dramatically. A formal joint statement published on May 12, 2026, listed over 20 nations including Albania, Australia, Bahrain, Belgium, Canada, Denmark, Germany, Greece, Italy, Japan, the Netherlands, Norway, Portugal, Qatar, South Korea, and Sweden . Overall, more than 40 nations participated in planning meetings, with defense ministers gathering on May 11 to outline specific military contributions .

What the naval force includes

The UK and France have already positioned substantial assets in the region:

• The Royal Navy destroyer HMS Dragon, a Type 45 warship equipped with the Sea Viper counter-drone system, has been pre-positioned in the Gulf .
• The UK has announced the deployment of Typhoon fighter jets, autonomous mine-hunting systems, and autonomous Kraken drone boats .
• France moved its nuclear-powered aircraft carrier Charles de Gaulle and its strike group southward past the Suez Canal into the Red Sea in early May .
• Italy contributed minesweepers to the effort .

France’s Foreign Minister Jean-Noël Barrot described the planned composition as including minehunters, warships, and air surveillance assets, with about a dozen militaries directly involved in operational preparation .

The ceasefire that made it possible

On June 14, 2026, U.S. President Donald Trump announced what he called a "permanent agreement" to end the war with Iran, including the immediate reopening of the Strait of Hormuz . Iran’s Deputy Minister Kazem Gharibabadi confirmed the ceasefire on the same day .

The deal was reported to include a ceasefire on all fronts, including in Lebanon, where Hezbollah welcomed the agreement . This followed an earlier two-week ceasefire negotiated in early April 2026 .

However, neither the United States nor Iran has publicly released the full contents of the agreement, and the terms remain opaque . Reports indicate the deal includes an end to hostilities and a commitment that neither side will initiate new military action, but verification mechanisms have not been detailed .

The big question: Will Iran accept the mission?

Despite weeks of diplomatic preparation, Iran’s stance remains the critical variable. Reuters reported on June 15 that it was "doubtful whether Tehran would be prepared to accept any such operation" in the Strait of Hormuz . The mission is designed to be independent of both the U.S. and Iran, but its operational area cuts through waters that Iran considers under its strategic influence .

Even if the ceasefire holds, the scale of the demining task is significant—the strait was heavily mined during the conflict—and the mission can only fully deploy once a stable ceasefire is firmly in place .

As of Macron’s announcement, the assets were in position. Whether they will ever receive the green light to begin clearing the world’s most critical oil chokepoint depends on the durability of a peace deal that has only just been declared.

By mid-May, the coalition had expanded dramatically. A formal joint statement published on May 12, 2026, listed over 20 nations including Albania, Australia, Bahrain, Belgium, Canada, Denmark, Germany, Greece, Italy, Japan, the Netherlands, Norway, Portugal, Qatar, South Korea, and Sweden . Overall, more than 40 nations participated in planning meetings, with defense ministers gathering on May 11 to outline specific military contributions .

What the naval force includes

The UK and France have already positioned substantial assets in the region:

• The Royal Navy destroyer HMS Dragon, a Type 45 warship equipped with the Sea Viper counter-drone system, has been pre-positioned in the Gulf .
• The UK has announced the deployment of Typhoon fighter jets, autonomous mine-hunting systems, and autonomous Kraken drone boats .
• France moved its nuclear-powered aircraft carrier Charles de Gaulle and its strike group southward past the Suez Canal into the Red Sea in early May .
• Italy contributed minesweepers to the effort .

France’s Foreign Minister Jean-Noël Barrot described the planned composition as including minehunters, warships, and air surveillance assets, with about a dozen militaries directly involved in operational preparation .

The ceasefire that made it possible

On June 14, 2026, U.S. President Donald Trump announced what he called a "permanent agreement" to end the war with Iran, including the immediate reopening of the Strait of Hormuz . Iran’s Deputy Minister Kazem Gharibabadi confirmed the ceasefire on the same day .

The deal was reported to include a ceasefire on all fronts, including in Lebanon, where Hezbollah welcomed the agreement . This followed an earlier two-week ceasefire negotiated in early April 2026 .

However, neither the United States nor Iran has publicly released the full contents of the agreement, and the terms remain opaque . Reports indicate the deal includes an end to hostilities and a commitment that neither side will initiate new military action, but verification mechanisms have not been detailed .

The big question: Will Iran accept the mission?

Despite weeks of diplomatic preparation, Iran’s stance remains the critical variable. Reuters reported on June 15 that it was "doubtful whether Tehran would be prepared to accept any such operation" in the Strait of Hormuz . The mission is designed to be independent of both the U.S. and Iran, but its operational area cuts through waters that Iran considers under its strategic influence .

Even if the ceasefire holds, the scale of the demining task is significant—the strait was heavily mined during the conflict—and the mission can only fully deploy once a stable ceasefire is firmly in place .

As of Macron’s announcement, the assets were in position. Whether they will ever receive the green light to begin clearing the world’s most critical oil chokepoint depends on the durability of a peace deal that has only just been declared.