The Strait of Hormuz is closed, the naval blockade has been reinstated, and the president of the United States is threatening to bomb Oman, a country Washington spent half a century calling its most reliable intermediary in the Persian Gulf. This is the anatomy of a diplomatic failure that has cost the global economy nearly 17 million barrels a day in lost transit capacity.
On June 17, 2026, over dinner at the Palace of Versailles hosted by Emmanuel Macron to mark the 250th anniversary of American independence, Donald Trump signed a memorandum of understanding with the Islamic Republic of Iran. The staging was impeccable: the French host, the Pakistani prime minister acting as mediator and co-signatory, and Iranian President Masoud Pezeshkian giving his approval remotely from Tehran. The White House declared that the beginning of the end had arrived for the war that began on February 28.
Exactly sixty days later, on August 17, the window allotted by the parties closed. Not once during that period did substantive negotiations on the nuclear program begin. The naval blockade of Iranian ports, lifted at the end of May, has been back in place since July 14. The Strait of Hormuz, through which roughly one-fifth of global oil trade passed before the war, is once again effectively shut down: according to vessel-tracking systems, on some days in August only about ten ships passed through, compared with a prewar norm of 88 to 130. The administration has publicly disavowed several key provisions of its own memorandum, including a reconstruction fund for Iran of at least $300 billion, sanctions exemptions allowing the immediate sale of Iranian oil, and an Iranian-Omani dialogue on the rules governing navigation.
The final touch came Monday, when Trump threatened a military strike against Oman in an interview with Fox News if it “gets involved” in the Hormuz issue. Formally, Oman remains a U.S. security partner in the Gulf. In practice, it is the only venue where any negotiations over the strait are taking place at all.
The failure was not accidental. The structure of the Versailles document made it unworkable from day one.
A Memorandum Written Backward
The fourteen provisions of the Versailles text, published by American media the following day, read like a list of advance payments issued against future obligations.
The fourth provision required the United States to begin lifting the naval blockade immediately, terminate it completely within thirty days, and withdraw forces from the Iranian coast once a final agreement was concluded. The fifth required Iran to guarantee safe passage for commercial vessels without charging fees for sixty days. The sixth committed Washington, together with regional partners, to develop a reconstruction and economic development plan for Iran worth at least $300 billion, with the implementation mechanism to be agreed within the same sixty-day period. The seventh called for the termination of all forms of sanctions, including measures stemming from resolutions of the United Nations Security Council and the International Atomic Energy Agency’s Board of Governors.
In return, Tehran reaffirmed that it would not develop nuclear weapons and agreed to allow the International Atomic Energy Agency to monitor the downblending of its stockpile of highly enriched uranium.
The asymmetry is obvious. Every American concession was specific, time-bound, and activated by the signature itself. Iran’s obligations, by contrast, were declaratory and depended on verification that did not exist. Agency inspectors had already been withdrawn from Iran in 2025, and in its June report the International Atomic Energy Agency explicitly acknowledged that it could provide no information about the size, composition, or location of Iran’s enriched uranium stockpile. The relevant figures were those recorded before access was lost: roughly 440 kilograms of uranium hexafluoride enriched to as much as 60 percent and approximately 184 kilograms enriched to 20 percent. In March, Abbas Araghchi said the material was buried beneath the rubble of destroyed facilities. No one can verify that claim.
The negotiating logic had been turned inside out. Washington surrendered its leverage, the blockade, the sanctions regime, and the prospect of unfreezing assets, in exchange for promises whose implementation it had no means of monitoring. As early as June 18, Republican Senator Roger Wicker publicly argued that the memorandum was trading away the military gains of a campaign Congress calls Operation Epic Fury, contrary to the president’s own stated objectives. Coming from a Republican, the comparison with the 2015 nuclear agreement sounded like an indictment: in Wicker’s telling, against the backdrop of Versailles’ $300 billion package, the “payments” associated with the Obama-era deal looked trivial.
What followed was predictable. One day after the signing, Trump used Truth Social to dismiss reports of the $300 billion commitment as Democratic propaganda, while Vice President JD Vance clarified that the money would come from the Arab monarchies of the Gulf. None of those monarchies had publicly assumed any such obligation. A document signed less than twenty-four hours earlier was already disintegrating before the eyes of its own authors.
Who Really Controls the Tap
Tehran drew one strategic conclusion from the first weeks of the war, and it turned out to be correct: fighting the U.S. Air Force is pointless; fighting global shipping is profitable.
By August, Iran’s strategy had ceased to be military and had become tariff-based. The Islamic Revolutionary Guard Corps is not trying to win a naval battle. It mines shipping lanes, inspects and attacks commercial vessels, selectively allows tankers from certain countries to pass through Iranian territorial waters, and demands that shipping follow routes and protocols established by Iran. The logical endpoint of that system is a transit fee.
Legally, the concept is indefensible. The Strait of Hormuz falls under the regime of transit passage, and international maritime law does not permit states to levy charges merely for passage through such straits. That is precisely why the Versailles text stipulated that any future arrangements between Iran and Oman would have to comply with applicable international law. Politically, however, the tariff model gives Tehran what it lost on the battlefield: a permanent, renewable source of leverage requiring neither missiles nor a nuclear warhead.
On August 8, Iran’s Supreme National Security Council published its conditions for reopening the strait, and the list was maximalist: the lifting of the U.S. naval blockade, the removal of sanctions, the release of frozen assets, an end to the war, and compensation for damages. State media widely circulated the formulation that the strait would not reopen until America corrected its behavior. Mohsen Rezaei, a military adviser to the supreme leader, put a specific figure on the frozen assets: $24 billion. In mid-August, Deputy Foreign Minister Kazem Gharibabadi publicly articulated the doctrine in unmistakable terms: the strait is Iranian, and it opens and closes at Iran’s command.
The crucial point that Washington continues to underestimate is that these demands are not a negotiating position in the conventional sense. On August 9, Araghchi said explicitly that there were no negotiations between Tehran and Washington and that intermediaries were merely searching for a way to restart them. Iran is not bargaining. It is presenting a bill and waiting until the cost of delay for the other side exceeds the cost of making concessions.
The Oman Trap
Trump’s threat against Muscat is the most revealing mistake of recent weeks.
For decades, Oman performed a function no one else could: it provided a confidential channel between Washington and Tehran. Omani channels facilitated the contacts that eventually led to the 2015 nuclear agreement. Geographically, the sultanate controls the southern shore of the strait, making any workable navigation regime physically impossible without its participation.
On August 8, Araghchi said Iran was very close to an agreement with Oman on traffic arrangements in the strait. The sultanate’s Foreign Ministry described the talks as positive and constructive while simultaneously condemning the continuing attacks on ships, without directly naming a perpetrator. On August 15, Iran’s Mehr news agency reported that an agreement on a traffic scheme had been reached and that the parties were finalizing a joint statement.
The United States is not participating in those negotiations.
The White House response amounted to a threat. In a telephone interview with Fox News correspondent Trey Yingst, the president said Oman would be bombed if it got in the way, using profanity; the network did not release an audio recording of the interview. Later, speaking to reporters in the Oval Office, Trump repeated that Muscat had not behaved well and that dealing with it would not be difficult. There was precedent: similar language had been used during a Cabinet meeting in May.
The strategic effect of the threat is the exact opposite of what was intended. Oman, pushed out of its mediating role under threat of attack, loses any incentive to accommodate U.S. interests in a deal with Iran. Tehran, meanwhile, receives a ready-made propaganda argument for the entire Gulf: Washington is threatening to bomb an Arab ally for trying to open the strait, even though reopening the strait is supposedly America’s principal objective.
The domestic political cost was immediate as well. Democratic Senator Tim Kaine said that when the Senate returns from its August recess, he will introduce a resolution prohibiting military action against Oman. Separately, Trump publicly mused that after defeating Iran he would declare the Strait of Hormuz U.S. territory, language that sounds to the Gulf monarchies less like a security guarantee than a description of a new source of danger.
Eighty-Eight Dollars as a Ballot
The economics of the war have ceased to be a foreign-policy issue and become a domestic one.
Figures from the U.S. Energy Information Administration’s August 11 report provide a precise measure of the disruption. Transit of crude oil and other liquid hydrocarbons through the Strait of Hormuz averaged 4.9 million barrels per day in the second quarter of 2026, compared with 21.6 million barrels per day in the fourth quarter of 2025. Regional production losses were estimated at 5.5 million barrels per day in July. Middle Eastern output is not projected to return to near-prewar levels before early 2027, with a chronic shortfall of roughly 600,000 barrels per day expected to persist through the end of next year.
The price trajectory reads like a chart of diplomatic fortunes. On July 2, amid the optimism generated by Versailles, Brent crude fell to $69 a barrel. On July 23, after attacks on tankers resumed and Saudi exports through the Bab el-Mandeb came under threat, prices reached $105. By mid-August, the benchmark was trading between $87 and $91, roughly one-quarter above its prewar level. The Energy Information Administration raised its forecast for the average third-quarter Brent price to $85, $11 above its July estimate.
The war’s price tag cannot be reduced to market quotations. War-risk insurance premiums for passage through the strait have multiplied from prewar levels, some protection and indemnity clubs have withdrawn coverage altogether, and insurance rather than physical danger has become the binding constraint for shipowners. Some tankers are sailing with their transponders switched off, meaning actual traffic may be greater than what tracking systems show, a circumstance that suits both Tehran, which is selling oil around the blockade, and the White House, which needs evidence that its pressure campaign is working. The largest container carriers, Maersk, MSC, CMA CGM, and Hapag-Lloyd, suspended transits in the opening days of the war, while hundreds of tankers anchored outside the strait instead of entering it. Convoys now move under military escort, which in itself raises logistics costs for every participant in the market regardless of how the negotiations end.
For the American voter, all of this translates into one measurable variable: the price of gasoline at the pump. Lee Miringoff, director of the Marist Institute for Public Opinion, described the political mechanism precisely: in voters’ minds, the war has merged with the economy, the closure of the strait has driven fuel prices higher, and there is no coherent answer to three questions at once: why did we go in, how is it going, and how do we get out?
Polling shows erosion precisely where it is most dangerous for Trump: within his own party. An Economist-YouGov poll published last week put the president’s approval among Republicans at 79 percent, the lowest level of his second term and 15 points below where it stood at the beginning of the term. The share of Republicans who strongly approve of his performance plunged from 68 percent to 48 percent. A July Washington Post-Ipsos survey found that only 15 percent of Americans strongly approved of the president’s performance. For the first time in that polling series, substantially more than half of Trump’s supporters backed him only somewhat rather than strongly.
When the memorandum expired, 78 days remained before the midterm elections that will determine control of Congress. Republican majorities in both chambers are razor-thin.
The president publicly denies that he is under any time pressure. In his Fox News interview, he said he had no timetable, was in no hurry, and that the midterm elections had nothing to do with his calculations. What makes the statement notable is that the behavior of his own party contradicts it.
A Congress Counting the Cost
The war cost the U.S. armed forces eighteen lives between late February and the end of July, four of them in a single week after July 17. According to the Pentagon, the number of wounded was approaching five hundred, with roughly one hundred casualties occurring during two weeks in July. By August, the aircraft carrier USS Abraham Lincoln had been deployed for more than 250 days since leaving San Diego; the president dismissed reports of depleted supplies and declining morale as fake news.
Congress has voted on war powers ten times. On June 3, the House of Representatives adopted a resolution by 215 votes to 208, with four Republicans joining Democrats. On June 24, the Senate approved a similar measure by 50 votes to 48. One month later, on July 23, the House voted again, 214 to 208, with the same four Republicans: Warren Davidson, Brian Fitzpatrick, Tom Barrett, and Thomas Massie. A Senate resolution that same day was blocked by a vote of 47 to 49.
These measures carry no legal force, and the administration disputes the constitutionality of the War Powers Resolution itself. Their political significance is different: the votes show that a faction whose electoral foundation was built on the promise of ending endless wars has begun to break away publicly, by name, and in an election year.
During the July debate, Republican House Foreign Affairs Committee Chairman Brian Mast held up photographs of fallen service members on the House floor. Democrat Pramila Jayapal, who has led the issue in the House, described the campaign as a war without a clear mission, strategy, or end state. Formally, that is partisan rhetoric. Substantively, neither side has been able to define what victory would look like.
Tehran Without Khamenei
The assumption that economic strangulation will break the Iranian system runs up against a structural transformation that occurred in the first days of the war.
Ali Khamenei was killed at the beginning of the campaign on February 28. In March, his son Mojtaba Khamenei became supreme leader. On August 8, state media showed video of him for the first time since his appointment; the footage was undated. On August 9, reports said Pezeshkian had met with the leader, but no evidence of the meeting was provided. The public absence of the supreme leader combined with the uninterrupted preservation of the power structure creates a configuration in which the center of decision-making shifts toward the security establishment and the Supreme National Security Council.
The practical consequence is that the negotiating counterpart has become simultaneously less identifiable and more hard-line. Arguments centered on the suffering of the Iranian population are being directed at a system that disappeared along with the previous leader. Alan Eyre, a former American diplomat who participated in the negotiating team that prepared the 2015 agreement and is now affiliated with the Middle East Institute, assesses the situation without illusions: the war has evolved from a military operation into a campaign of economic pressure whose burden will fall primarily on ordinary Iranians rather than on an increasingly rigid regime. In his formulation, a complex system has been broken and will not return to its previous state.
The episode involving supposedly existing back channels is revealing. On Monday, Trump told Fox News that talks were taking place through back channels with representatives of the Islamic Revolutionary Guard Corps. The Guard’s spokesman, Brigadier General Hossein Mohebbi, denied the claim through the Tasnim news agency, describing it as a product of defeat and desperation in the war. The denial came within hours, an indication of how badly Tehran now wants the reputation of an unyielding adversary and how little it wants the reputation of a party willing to make a deal.
Israel, Which Signed Nothing
Another layer of the failure was an ally that was not bound by the Versailles commitments.
Benjamin Netanyahu made clear immediately after the signing that Israel did not consider itself obligated to comply with the memorandum. Legally, the position was impeccable: Israel was not a party to the document. In practical terms, however, this meant that the American commitment to halt all military operations on all fronts could be fulfilled only halfway, and every Israeli action automatically became evidence, in Tehran’s eyes, of American bad faith.
The mechanics of the breakdown confirm the flaw in the arrangement. The strait reopened for toll-free passage around June 17, although traffic remained far below normal levels. Three commercial vessels were attacked on July 6 and 7. On July 7, Trump declared the ceasefire effectively dead. On July 14, the naval blockade resumed. The parties accused each other of violations, and both were formally correct: the document contained no verification mechanism, no dispute-resolution procedure, and no arbitrator. Pakistan, which had acted as mediator at the signing, had no instruments of enforcement.
Who Benefits From a Closed Strait
The failure of Hormuz diplomacy is redrawing Eurasia’s logistics map, and the beneficiaries have already emerged.
Saudi Arabia has diverted a significant share of its exports to the East-West Pipeline terminating at the Red Sea port of Yanbu. Total crude oil and liquid hydrocarbon flows through the Bab el-Mandeb rose from 5.4 million barrels per day in the fourth quarter of 2025 to 8.1 million in the second quarter of 2026. Yet the Red Sea route is itself under pressure: the Houthis have resumed attacks, erasing the gains achieved after the October 2025 ceasefire.
The second beneficiary lies farther north. The Trans-Caspian International Transport Route, better known as the Middle Corridor, has suddenly encountered the level of demand for which its infrastructure had been preparing for years and for which it still proved not entirely ready. Container traffic along the route reached 42,000 twenty-foot equivalent units in 2025, an increase of roughly 15 percent, and the war has sharply accelerated that trend. The Baku International Sea Trade Port at Alat handles up to 150,000 twenty-foot equivalent units, with plans to expand capacity to 260,000. Under an agreement between KazMunayGas and SOCAR, Kazakh oil has moved through the Baku-Tbilisi-Ceyhan system since 2023. Volumes reached 1.5 million metric tons last year, with substantial growth planned by 2027. At the beginning of 2026, the World Bank approved an $846 million guarantee supporting $1.4 billion in financing for Kazakhstan Railways.
The institutional architecture is being built in parallel with the physical infrastructure. In April, at meetings in Astana, the board and general assembly of the international association governing the Trans-Caspian route, with participation from Kazakhstan, China, Azerbaijan, Georgia, and Turkey, approved a 2026 work plan focused on digitizing transport procedures. Before the war, this looked like a technical issue. It now determines actual throughput capacity. Azerbaijan, Georgia, and Kazakhstan established the joint venture Middle Corridor Multimodal in 2023, and China Railway Container Transport joined it in August 2025. In 2025, Baku entered the Central Asian five-country format, turning it into a six-country grouping and becoming its first participant from outside the region. The constraints are equally clear: declining Caspian Sea levels have already reduced ferry traffic on the Baku-Kuryk route, while long-term projections of further water-level decline are calling the current configuration of the Aktau and Kuryk port facilities into question.
The logic is straightforward. Every month Hormuz remains closed increases the premium on predictability, and today predictability is being offered by routes that physically pass neither through Iranian territory nor through straits exposed to military attack. The South Caucasus and the Caspian are evolving from backup options into structural components of Europe’s and China’s energy and trade security, without a single shot being fired by the transit states.
The third beneficiary remains in the shadows. Russia and China gain from the erosion of American influence in the Gulf, expensive oil, and a vivid demonstration of what can happen when nuclear disputes are addressed through force. That argument will be used in every future negotiation on nonproliferation.
Four Scenarios, None of Them Good
A frozen conflict without an agreement. This is the most likely scenario through November. The blockade remains in place, Iran keeps the strait partially closed, the United States avoids major ground operations, and Brent stays in the $85 to $100 range. Trump enters the election with a war that has no exit strategy, the party loses part of its majority, and congressional pressure emerges that could alter the campaign’s budgetary foundation.
An Omani compromise over Washington’s head. Iran and Oman formalize a navigation arrangement, and carriers and insurers join it de facto because any system is preferable to no system at all. The United States then faces a choice: recognize an agreement it did not sign or disrupt it by force. The second option would mean striking an Arab ally and collapsing America’s position in the Gulf.
Escalation into a new phase. An attack on a tanker causing mass casualties, a strike on Gulf infrastructure, or the deaths of a significant number of American service members triggers a new wave of bombing. Oil rises above $100 a barrel. According to the European Commission’s March estimates, if Brent remains around that level for a sustained period, inflation in the European Union could exceed 3 percent and 2026 growth could lose as much as 0.4 percentage point. Politically, eleven weeks before the vote, this would be the worst possible scenario for the White House.
A rapid deal on Iranian terms. This is the option the administration publicly rules out, yet it is the only one capable of producing a measurable result before November: lifting the blockade and part of the sanctions, unfreezing assets in exchange for reopening the strait and restoring International Atomic Energy Agency access. The price would be an admission that the Versailles document was more workable in June than it is in August, and that sixty days were spent weakening Washington’s own position.
Conclusion: A War That Has Lost Its Purpose
The principal outcome of these sixty days is not that the negotiations failed. What failed was the very definition of victory.
The stated objective of the campaign, preventing Iran from acquiring a nuclear weapon, has become less verifiable after six months of war than it was before the war began. The International Atomic Energy Agency has no access, the whereabouts of hundreds of kilograms of highly enriched uranium are unknown, and no verification mechanism exists. The second objective, reopening the Strait of Hormuz, has been replaced by its own opposite: the American naval blockade is now reducing traffic in the same way Iranian mines are.
The Versailles deal did not fail because Iran proved treacherous, nor because Trump lacked toughness. The failure was embedded in its design. An agreement in which every concession by one side takes effect automatically while every obligation assumed by the other requires verification that does not exist is not an agreement. It is a declaration of intent dressed up as a treaty, signed against scenery designed for television and disintegrating at its first encounter with the realities of the Persian Gulf.
A president who built his political identity on the promise of ending other people’s wars is now fighting one of his own, in its sixth month, without a defined end state, with a rising toll in human lives and with gasoline prices turning foreign policy into domestic politics. The threat to bomb Oman is not a display of strength but a sign that strength is running out: once negotiating leverage disappears, the only remaining argument is to threaten those who are still willing to talk.
Meanwhile, the world is reorganizing itself around the closed strait without waiting for Washington. Oil is moving through Yanbu, containers are crossing the Caspian, insurance premiums have been rewritten, and alternative routes are being locked in through contracts. The complex system Alan Eyre described has indeed been broken, and no one is preparing to restore it in its previous form. The loser in this war will not be the side that sits down at the negotiating table first, but the side that realizes last that the table has already been moved somewhere else.