Somewhere in the briefing papers prepared for this week’s meeting between Donald Trump and Xi Jinping sits a request that quietly retires a decade of American strategy. Washington wants Beijing to lean on Tehran over the Strait of Hormuz. China buys more Iranian crude than any other country, which is exactly why its opinion is thought to carry weight in Tehran. So, the United States, after 10 years of arguing that it must pull itself free of the Chinese economy, is asking the Chinese economy to help it reopen a waterway that the U.S. Navy has not been able to reopen in nearly seven months of trying.
Decoupling was always a doctrine about choice: reshore this, friend-shore that, wall off the rest. In semiconductors and advanced computing, the case survives. Applied to oil, grain, fertilizer and the ordinary manufactured goods that travel in boxes, it has run into something no policy memo can legislate around. A large share of what keeps both economies moving has to squeeze through two narrow passages—the Strait of Hormuz and Bab al-Mandab at the southern end of the Red Sea—that neither government controls.
The official numbers and the measured ones do not match, which is its own kind of evidence. Trump has said the Navy is helping some 30 ships through Hormuz every night. Treasury Secretary Scott Bessent put the flow at 10 million barrels a day, rising to 17 million on a good one. Commercial ship trackers counted between five and 14 transits a day over the same period. The week to September 14 produced 97 non-Iranian-linked transits, a three-week high that the trade press treated as encouraging news. Before the Revolutionary Guard closed the strait on March 2, traffic ran at more than a hundred vessels a day. The encouraging week amounted to roughly a day of normal business.
Gulf crude exports are down 47 percent from pre-war levels, about 9 million barrels a day against 17 million. Saudi Arabia has pushed what it can west through the East-West pipeline to Yanbu and leased storage at Sohar, while Kuwait, which has no bypass, has seen port calls fall 86 percent. Talks between Iran and its Gulf neighbors on reopening the strait, convened without American participation, were postponed this month.
The second passage closed while attention stayed on the first. On September 11, Houthi forces took Mocha, Dhubab, and Perim Island , completing control of Yemen’s Red Sea coastline and the eastern shore of Bab al-Mandab. Carriers responded by sailing through anyway. More than a quarter of Asia-Europe capacity has been routed via the Red Sea this month, which says less about confidence than about how little slack exists on the alternative.
Prices tell the rest. A very large crude carrier on the West Africa-to-China run has been earning $509,000 a day , roughly 20 times the break-even point and nearly triple where it stood in early September. Suezmax rates from West Africa to Europe hit an all-time high on September 11. War-risk insurance premiums for both straits have multiplied, and the cost has spilled over to container shipping , which has nothing to do with oil and everything to do with bunker fuel and detours.
None of this stays in the Gulf. American consumer prices rose 3.4 percent in the year to August, with gasoline up 27.4 percent and energy doing most of the work in the headline number. Brent topped $101 on September 9 and slid back below $100 yesterday on nothing more substantial than Trump saying he was open to talking to Iranian President Masoud Pezeshkian at the United Nations this week. A single sentence at the General Assembly now moves the price of a tank of gas in Ohio.
China sits at the other end of the same pipe. Its exports rose 25 percent in August and its trade surplus reached $119.1 billion, a record pace built on semiconductors, autos, and AI hardware. That machine runs on imported energy and imported raw material, and its imports climbed 28.2 percent in the same month. Every dollar added to a barrel landed at Ningbo eventually reaches an American shelf, because the intermediate goods in an American product still pass through Chinese factories on their way there.
Which brings the argument back to Washington. The tariff truce between the United States and China expires on November 10 . Negotiators are working toward roughly $30 billion in mutual tariff relief, an order for 200 Boeing aircraft, and a Chinese commitment of at least $17 billion a year in American farm purchases through 2028. Beijing has already passed the halfway mark on a 25-million-ton soybean target, and Under Secretary Luke Lindberg has confirmed that the purchases are on schedule. Washington treats all of this as a concession extracted from Beijing. It is closer to a hedge that both governments bought for themselves.
Letting the truce lapse would mean adding a policy shock to a physical one. Tariffs returning above 100 percent would raise the cost of everything still moving through the lanes that remain open, push Chinese buyers into more aggressive competition for the same constrained barrels, and tell markets that the two largest economies are prepared to run a trade war on top of a shipping war. The 1970s provide an instructive lesson on what happens when supply disruption and policy fragmentation arrive together. The adjustment takes longer and costs more than either shock would alone.
There is a pattern worth noticing here that Washington has not been willing to look at directly. The Iran campaign was built on the premise that enough economic pain produces political compliance. Sanctions, then strikes, then more sanctions. Seven months on, Tehran still decides who transits Hormuz, its allies hold the Yemeni coast, and the bill has landed on households in Cleveland and Lyon and Guangzhou.
Economic coercion did not produce a client state. It produced a chokepoint. The same instrument aimed at an economy 40 times Iran’s size, and far more deeply wired into American production, would not yield any better results.
None of which requires admiring the Chinese government or dropping legitimate objections to technology transfer and military modernization. It requires a distinction that the decoupling framework refuses to make. Chips and dual-use systems belong in one category. Energy, bulk commodities, food, and the goods in the boxes belong in another, where interdependence is not a vulnerability to be engineered away but the only thing currently keeping a Middle Eastern war from becoming a global inflation event.
Geography has already made its ruling. The United States and China can contest AI, the Indo-Pacific, and the terms of the next industrial era—and they will. They cannot contest the width of Bab al-Mandab. What Trump and Xi will not put on Thursday’s agenda is the question their own supply chains answered months ago: whether either of them is prepared to say out loud that neither can be made secure alone.
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The Xi-Trump Summit Runs on Oil that Isn’t Moving
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