Monday afternoon, US Eastern time. President Donald J. Trump wrote on Truth Social: “From this moment, the United States will be known as the Guardian of the Strait of Hormuz. As part of a fairness principle, the United States will receive 20% of the value of all cargo transported through the Strait, to cover the full cost of maintaining security in this globally highly unstable region.”
Six sentences. The first announced the United States had assumed unilateral authority over the world’s most important oil chokepoint. The second announced a 20% tariff on every cargo moving through it. The third said the Strait “is open and will remain open regardless of whether Iran participates.” The fourth said the US would “restart the Iran Blockade Order,” which, “as the name suggests, only blocks Iranian ships or their customers.” The fifth said the “implementation process and organizational work will begin immediately.” The sixth said nothing about allies, international law, or the 6/18 Memorandum of Understanding, which Trump had formally scrapped 24 hours earlier.
Iran’s response came in three statements in three hours. The Armed Forces Khatam al-Anbia Central Headquarters said the United States “will not be allowed to interfere with the management of the Strait of Hormuz” and warned of “strong retaliation” against “unauthorized entry into designated shipping lanes.” The Persian Gulf Strait Authority said the Strait “is currently impassable” due to “US hostile actions.” The Iranian embassy in the United Kingdom said the southern lane — the Omani-controlled channel that Oman’s two-corridor plan had designated as a free passage — was “unsafe, unreliable, and accident-prone.”
By Monday evening, the Strait of Hormuz had three announced policies and zero of them agreed. The United States was the “Guardian.” Iran was the “manager.” Neither had a navy large enough to enforce its own claim. And 20% of every cargo in the world’s most-trafficked oil lane was, in Mr. Trump’s arithmetic, the price of admission to a US protection racket.
The Third Night
At 4:45 PM US Eastern on Monday, CENTCOM launched its third consecutive nightly air strike on Iran, the fourth round in seven days. Explosions were reported near Bandar Abbas and Chabahar ports on the Gulf of Oman coast, and four ballistic missiles hit the Konarak area, with US fighters observed circling overhead.
The night’s most significant new fact was a first in US naval combat history. CENTCOM released video of three “Corsair” unmanned surface vessels attacking the port of Bandar Abbas — Iran’s primary naval base on the Strait of Hormuz. The Corsair is a 16-foot armed USV developed by the Office of Naval Research; this is its first operational use against an enemy naval facility. The same strike package included “multiple one-way attack drones” against a submarine and ship maintenance facility.
The targets fit a strategic pattern. Bandar Abbas is home to the IRGC Navy’s fast-attack boat fleet, the mine-laying capacity that closed the Strait last week, and the missile storage depots that supplied the 7/12 strikes on Qatar, Oman, Kuwait, and Bahrain. Konarak and Chabahar are on the Makran coast — the launch complex for the Houthi-style anti-ship missiles that have been hitting shipping in the Gulf of Aden since February.
The Blockade and the Fee
Within hours of the strikes, Trump announced the naval blockade, scheduled to take effect at 4:00 PM US Eastern on Tuesday 7/14 (4:00 AM Beijing 7/15). CENTCOM issued a separate notice to mariners: “All vessels transiting the Gulf of Oman and Strait of Hormuz are advised to monitor Navigational Telex Broadcasts and maintain contact with US Navy forces on Bridge-to-Bridge Channel 16.”
The fee structure was the most novel part. The United States — a permanent member of the UN Security Council, a signatory to the 1982 UN Convention on the Law of the Sea, and the country that, per the State Department in February, would “categorically reject any unilateral change to the regime of innocent passage through international straits” — was now unilaterally changing the regime of innocent passage through the world’s most important international strait, and was charging for it.
The legal theory: under UNCLOS Article 26, coastal states may charge for “specific services rendered” to vessels. The US argument is that Hormuz transit is a “specific service” that the US Navy now provides. Iran rejects the theory. China, the largest single importer of Hormuz oil, called for the Strait’s navigation to be “properly handled” and for “international community’s concerns to be properly addressed.” A senior Gulf source told Axios: “The US has not discussed with regional allies the possibility of transit fees to secure Hormuz.”
The Iranian Retaliation
The Iranian response was rapid, distributed, and multi-axis. In the four hours after Trump’s post:
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Kuwait: Iran’s regular army announced suicide-drone strikes against the communications systems, fuel storage, Patriot air defense, control tower, and ammunition depot at US Ali Al Salem Air Base. (The IRGC had separately struck Camp Buehring with a missile package earlier.)
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Bahrain: Bahrain’s Defense Ministry confirmed intercepts of “multiple Iranian missiles and drones” targeting Sheikh Isa Air Base and the US Fifth Fleet home port. The IRGC claimed it had “destroyed” a US facility and “infrastructure” at the same base.
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Jordan: The IRGC said it had struck “US air bases” in Jordan for the second day, hitting an ammunition depot at Muwaffaq Al-Salti Air Base.
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Oman: The IRGC announced it had destroyed a US long-range air surveillance radar and a ship detection radar in Oman, the second strike on Omani soil in 24 hours.
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Air Defense: The IRGC claimed to have shot down two US-made “Lucas” surveillance drones near Bandar Abbas and Lar, Fars province, in the same hour as the Corsair strike.
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Navy: Iran’s regular navy said it had launched cruise missiles at US warships in the northern Arabian Sea in retaliation for the US strikes. No US Navy damage has been reported.
The 20% Reflation
The market reaction was the most direct economic signal of how the war has changed.
- WTI crude broke $75/barrel, intraday up 5%.
- Brent crude approached $80/barrel, intraday up 5%.
- Gold fell sharply toward $4,000/oz as the dollar rebounded above 101.
- Federal Reserve interest rate futures fully priced in at least one rate hike before September, and two hikes by next March.
- European Central Bank futures fully priced in a 25bp hike before September.
The 20% Hormuz fee, if enforced, would function as a tax on roughly 20% of global oil flows and 30% of global LNG flows. The Strait typically carries 17 million barrels of oil per day. At $75/barrel, the daily cargo value is $1.275 billion. The 20% fee would extract $255 million per day, $93 billion per year — a sum larger than the annual defense budget of every NATO country except the United States.
It is also the first time in modern history that a non-coastal state has attempted to unilaterally tariff an international strait.
The Constitutional Threshold
The single most significant procedural event of the day was a letter Trump sent to Congress on July 10, obtained by the New York Times on Monday. The letter formally notifies Congress that “war with Iran has reignited” and that the US military on July 7 “carried out defensive strikes against targets inside Iran.”
This is the first formal War Powers notification of the new conflict. Both the House and the Senate had previously voted to require the president to end the war or seek authorization to continue. The White House’s position is that Trump is acting within his constitutional authority as commander-in-chief, and that the July 7 strikes — 1,400 miles from the nearest US base, with 140 targets struck across 11 provinces since — are “defensive.”
The letter reignited the constitutional dispute. Senator Tim Kaine said the letter “is an admission that the president is at war without congressional authorization.” Speaker Mike Johnson has not yet responded. The Senate is scheduled to vote Wednesday on a War Powers Resolution to force a halt to the strikes.
The Other Side
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Houthis Threaten Saudi Arabia: Houthi forces on Monday evening released a video threatening attacks on multiple Saudi targets. Earlier in the day, the Houthis accused Saudi Arabia of striking Sanaa International Airport to prevent a Houthi delegation from boarding an Iranian plane returning from the Khamenei funeral in Mashhad. The Yemeni government’s defense ministry said it had struck the airport runway to prevent the Houthi delegation from leaving the country. (The two accounts are inconsistent.)
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Lindsey Graham Dies: Senator Lindsey Graham (R-SC) died Monday at age 71, per a statement from his office as reported by the Honolulu Star-Advertiser, citing “brief, sudden illness.” Graham, the ranking Republican on the Senate Armed Services Committee, was a leading congressional voice for the war. His death leaves the committee with two vacancies.
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Sam Neill Dies at 78: New Zealand-born actor Sam Neill died Monday in Queenstown at 78. Best known for Jurassic Park, The Piano, and Hunt for the Wilderpeople. He had announced a remission from angioimmunoblastic T-cell lymphoma in 2023.
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ICE Killing in Houston: A 32-year-old US citizen was shot and killed by an ICE officer in Houston on Friday, the Department of Homeland Security confirmed Monday. The officer has been placed on administrative leave. DHS said the man “resisted arrest” and “attempted to take the officer’s weapon.” The incident is under investigation by the Harris County Sheriff’s Office. ICE Acting Director Todd Lyons, who resigned Saturday, had been in the role for 11 months.
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Ukraine PM Svyrydenko Resigns: Ukrainian Prime Minister Yulia Svyrydenko submitted her resignation Monday, one year to the day after her confirmation. President Zelenskyy had asked for her resignation as part of a broader cabinet reshuffle. Svyrydenko will be reassigned to lead a new foreign-policy portfolio handling “key partner relations.”
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Bangkok Pub Fire: A fire at the Mountain B pub in Bangkok killed 27 and critically injured 22 early Sunday morning, the Bangkok Metropolitan Administration confirmed Monday. Governor Chadchart Sittipunt said the fire “may have had a table blocking the fire exit.”
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Typhoon Bavi in China: Typhoon Bavi made landfall in eastern China on Monday morning, with sustained winds of 110 mph. 1.8 million people were evacuated in advance.
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Korean Market Circuit Breaker (7th This Year): The KOSPI triggered its 7th circuit breaker of 2026 on Monday, closing down 9%. Samsung Electronics fell 10.7%, SK Hynix fell 15.37% (40% off June high). The Korean central bank issued a report Monday saying the AI-driven semiconductor “super-cycle” was not yet peaking, but failed to stop the sell-off.
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Renmin University Revokes Jiang Fangzhou’s Master’s Degree: China’s Renmin University announced Monday that it had revoked the master’s degree of Jiang Fangzhou, a prominent Chinese essayist, finding “9 instances of textual overlap” with a foreign journal article, with no citation. Jiang responded Monday evening: “I accept the university’s handling of this matter. To the readers who have been disturbed and disappointed by this, I apologize.”
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China-Russia “Maritime Joint-2026”: The China-Russia joint naval exercise concluded Monday in Qingdao, with 10 ships from both navies. A follow-on joint patrol in the Pacific Ocean began immediately. The exercise’s theme was “joint response to maritime security threats.”
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Fontainebleau Forest Fire Suspected Arson: French Interior Minister Bruno Retailleau said Monday that the Fontainebleau forest fire, which has burned 1,200 hectares south of Paris since Saturday, is “likely arson.” 10 ignition points were found within a 1,000-meter radius. 44 arsonists have been arrested in France so far this year; total area burned in 2026 is 32,000 hectares.
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Yoon Suk-yeol Sentenced 2 Years (First Trial): Former South Korean President Yoon Suk-yeol was sentenced to 2 years in prison on Monday in his first trial, for “accepting free public opinion polling services” during the 2022 election. Yoon is in custody awaiting additional trials, including his December 2024 martial law declaration, which carries a potential life sentence.
Mr. White
On Sunday, the MOU was scrapped. On Monday, the Strait was priced. Trump named the US the Guardian. Iran named itself the manager. China said it should be “properly handled.” The market priced in two Fed rate hikes and a 5% jump in crude. WTI broke $75. Gold fell. The Corsair USV hit Bandar Abbas — the first unmanned surface-vessel attack on an enemy naval base in US Navy history. The Strait of Hormuz became the world’s first toll booth on an international waterway.
You cannot have two guardians of the same strait, both charging their own tolls, both claiming the right to police the passage, neither having the navy to enforce its own claim. The MOU was the agreement that the Strait would be jointly managed under international law. On Monday, both guardians announced they would manage it alone, and charge for the service. By Tuesday, one of them will be wrong.
— Mr. White