Inside the 52nd G7 Summit: The Fragile US-Iran Framework, the Race to Reopen Hormuz, and the Gaps That Could Unravel It

President Trump announced that the Strait of Hormuz is “already partially accessible” and promised it would be “entirely open” for commercial shipping by June 19, posting on social media: “Ships of the World, start your engines. Let the oil flow!” . The U.S. also agreed to lift its naval blockade of Iranian ports .

Critically, the framework opens a 60-day window for detailed follow-on negotiations aimed at reaching a permanent ceasefire and a long-term accord on Iran’s nuclear and ballistic missile activities . French President Macron explicitly stated that a core G7 objective is “the concluding of an accord on nuclear and ballistic activities in Iran” to ensure the deal’s longevity .

However, as of the summit’s opening, the full text of the MoU had not been released publicly, and the precise terms remained opaque even to many allies. G7 leaders were described as “keen to learn the details,” many of which had not yet been shared with them . The U.S. military also clarified that the naval blockade remains formally in effect until the agreement is actually signed on June 19, a gap that creates immediate operational uncertainty .

The Hormuz Naval Mission: Operationally Ready, Politically Stuck

Parallel to the diplomatic track, a European-led plan to secure the Strait of Hormuz is the most concrete military proposal on the summit's table.

The Plan is Detailed and Ready. Military planners from more than 15 countries, led by the UK and France, have already drawn up operational blueprints for a mine-clearing and maritime security mission. The coalition could deploy assets within days of a peace deal being finalized .

European Leaders Are All In. France, Germany, the UK, and Italy have publicly endorsed the mission. Emmanuel Macron stated that the French aircraft carrier Charles de Gaulle could reach the Strait within two to three days, while participating nations are prepared to send frigates and specialized mine-clearance vessels .

The Mission Needs Trump’s Approval. Allies arrived at the summit specifically seeking President Trump’s formal go-ahead for the operation. The plan is structured so that allied assets would deploy only after the U.S.-Iran deal is signed, but Trump’s support is considered essential to its legitimacy and effectiveness .

The Real Blocker: Iran's Opposition. The most formidable obstacle is Tehran itself. Diplomats report that Iran has signaled strong opposition to any foreign military presence in the Strait. Instead, Iranian officials have floated the possibility of imposing their own transit fees on commercial shipping—a move European powers view as a red line . “Iran is hostile to any foreign military presence but open to dialogue,” a diplomatic source told Reuters, underscoring the tension .

Four Unresolved Gaps That Could Unravel the Agreement

Beyond the ship-to-shore logistics, four fundamental political issues remain entirely unresolved and threaten to collapse the framework within its 60-day window.

1. Israel’s parallel war in Lebanon. Shortly after the U.S.-Iran deal was announced, Israeli authorities declared the army would not withdraw from the parts of southern Lebanon it has seized. Israel’s continued offensive raises a direct question: can a ceasefire with Iran hold while the broader regional conflict burns?

2. Iran’s final stance on the naval mission. Without Tehran’s consent, the demining operation is a non-starter. Until Iran formally accepts—or at minimum tolerates—a foreign military mission in its coastal waters, the plan remains a paper exercise. The alternative proposal from Iran, transit fees, is a non-starter for the G7 .

3. An agreement without a published text. The lack of a publicly available MoU text fuels skepticism on all sides. G7 allies cannot fully endorse or enforce an agreement whose specific commitments, verification mechanisms, and sequencing remain unknown .

4. Fragile durability. The mood inside the summit was one of deep precaution. Leaders were described as striving “to prevent the delicate US-Iran agreement from faltering almost immediately,” a reflection of the broad consensus that a 60-day negotiating window is both a lifeline and a vulnerability .

The 52nd G7 Summit, therefore, opens not with the declaration of peace achieved, but with the far harder work of making a fragile framework stick. The next 72 hours will determine whether the Strait of Hormuz truly reopens—or if the deal becomes another diplomatic false start in a deeply fractured region.