US President Donald Trump greets Saudi Crown Prince and Prime Minister Mohammed bin Salman, during a dinner at the White House in Washington, DC, US, Nov. 18, 2025. Photo: REUTERS/Tom Brenner TPX IMAGES OF THE DAY

When France invited Egypt, Qatar, and the United Arab Emirates to a dedicated Arab-leaders session at the G-7 summit in Evian on June 16 to address the Strait of Hormuz and Iran’s Persian Gulf Security Authority, one invitation produced a conspicuous absence.

Saudi Arabia, the state with the largest estimated daily exposure to Iran’s Hormuz toll regime, will not attend. Riyadh has offered no public explanation.

The reflex interpretations are logistical: Crown Prince Mohammed Bin Salman (MBS) had a scheduling conflict; the kingdom was not ready to commit to the Evian agenda; or the diplomatic preparation was insufficient.

Yet every one of those framings does MBS a favor he does not deserve. Evian is not a scheduling failure. It is a strategic signal that Riyadh has decided it would rather absorb Iranian economic coercion than confront Tehran.

That distinction matters enormously. There is a functional difference between endorsing a condemnation of Iran’s Hormuz policy, which Saudi Arabia has done in various forms across various forums, and co-signing an enforcement posture that commits the kingdom to a named response framework. That would have required Saudi Arabia to publicly attach its name to an escalatory architecture, whether that means coordinated inspections, naval escorts, sanctions referrals, or some combination. Riyadh looked at that menu and chose absence over accountability.

The calculation is entirely rational on MBS’s terms. Saudi Arabia has spent years constructing a diplomatic identity premised on indispensability and victimhood simultaneously. The kingdom presents itself as the essential Arab partner that Washington cannot afford to alienate, while simultaneously positioning itself as a state under threat from Iran deserving of American protection without American expectations.

That dual framing collapses the moment Riyadh is seen co-leading an enforcement coalition against Tehran. It becomes a co-belligerent rather than a client, sacrificing the leverage that comes from strategic ambiguity.

Saudi Arabia, which depends on that strait for the overwhelming majority of its oil export revenue, has more to lose from the normalization of that precedent than any other state at the Evian table. Its daily liability figure, the highest among France’s invitees, makes its absence not just politically revealing but economically inexplicable on any terms other than deliberate choice.

The Trump administration has watched this pattern across multiple iterations. Saudi Arabia abstained from condemning the October 7 Hamas attack with the language Washington wanted. It maintained back-channel communications with Tehran even as American forces were engaged in the Red Sea. It purchased Chinese defense systems while negotiating American security guarantees. In each case, the White House recalibrated its expectations rather than imposing a cost. The pattern is now predictable enough that Riyadh has learned to rely on it.

Although the Iran deal might make this issue a moot point for now, what the Evian session has exposed is the difference between Arab states willing to take institutional risk in defense of a rules-based maritime order and those that are not. Egypt, Qatar, and the UAE are not natural partners in an anti-Iran enforcement architecture. Their attendance carried its own political costs and signaled a genuine, if limited, commitment to the framework France was trying to build. Saudi Arabia has the deepest structural stake in Hormuz security and declined anyway. That is not a scheduling conflict. That is a defection.

The Trump administration should treat it as such. Continued American arms transfers, defense cooperation agreements, and diplomatic cover for Riyadh should be conditioned on Saudi participation in multilateral enforcement frameworks when the kingdom has a direct and measurable stake in the outcome.

Washington has spent a decade accommodating MBS’s strategic ambiguity as though it were a fixed feature of the regional landscape rather than a choice sustained by the absence of consequences. MBS is not an ally who needs understanding. He is a partner who has concluded that abstention is free. Washington’s job is to change that price.

Amine Ayoub, a fellow at the Middle East Forum, is a policy analyst and writer based in Morocco. Follow him on X: @amineayoubx.