A U.S.-Iran war would be catastrophic for the Middle East. It might also be the single greatest strategic gift Washington could deliver to Beijing.
That’s the uncomfortable thesis gaining traction among economists, energy analysts, and foreign policy strategists as tensions between the United States and Iran continue to simmer. While most coverage of a potential conflict focuses on oil prices, military logistics, and regional destabilization, a deeper analysis reveals something more unsettling: a shooting war in the Persian Gulf could accelerate China’s rise as the dominant global economic power by a decade or more, fundamentally reshaping the international financial order in ways that would be nearly impossible to reverse.
Business Insider laid out the core argument in a recent analysis, identifying at least five major channels through which a U.S.-Iran conflict would benefit China economically. The mechanisms aren’t speculative. They’re structural, rooted in supply chain realities, energy dependencies, and financial architecture that already exists.
Start with oil.
Iran sits on the fourth-largest proven crude reserves in the world. A military conflict would almost certainly disrupt shipments through the Strait of Hormuz, the narrow waterway through which roughly 20% of the world’s oil supply passes daily. That disruption would send crude prices soaring — some estimates suggest $150 per barrel or higher — and the pain would not be distributed equally. The United States, despite its shale revolution, remains deeply integrated into global oil markets. Europe and Japan would be hammered. But China, which has spent years building strategic petroleum reserves and diversifying its energy sources, would be better positioned to absorb the shock.
More importantly, China has been quietly locking in long-term oil supply agreements with Russia, Saudi Arabia, and several African producers. These contracts, many denominated in yuan rather than dollars, would insulate Beijing from the worst price spikes while simultaneously advancing a goal China has pursued for over a decade: eroding the dominance of the petrodollar system.
The petrodollar isn’t just a financial convenience. It’s a pillar of American economic power. Since the 1970s, the global convention of pricing oil in U.S. dollars has generated constant international demand for the greenback, allowing the United States to run persistent trade deficits, borrow cheaply, and project financial influence worldwide. A war that disrupts Middle Eastern oil flows would accelerate the already-underway shift toward alternative settlement currencies. China’s yuan, backed by the country’s massive manufacturing base and growing network of bilateral trade agreements, is the obvious beneficiary.
And it’s not just about oil pricing. As Business Insider noted, a conflict would turbocharge global demand for renewable energy — a sector where China already holds commanding leads. China manufactures roughly 80% of the world’s solar panels. It dominates global battery production. It controls the processing of critical minerals like lithium, cobalt, and rare earth elements that are essential for electric vehicles, wind turbines, and grid-scale energy storage.
Every spike in oil prices makes renewables more economically attractive. Every disruption in fossil fuel supply chains pushes governments to accelerate their energy transitions. And every acceleration of the energy transition sends more money flowing toward Chinese manufacturers. The math is straightforward. Brutal, but straightforward.
Consider the numbers. The International Energy Agency has projected that global investment in clean energy will reach $2 trillion annually by 2030 under current policies. A major Middle Eastern war could push that timeline forward significantly, with governments scrambling to reduce their vulnerability to oil supply disruptions. China’s dominance in clean energy manufacturing means it would capture a disproportionate share of that spending surge — essentially converting American military expenditure into Chinese industrial revenue.
Then there’s the manufacturing angle. A U.S. war with Iran wouldn’t just disrupt oil markets. It would consume enormous military resources, divert government spending toward defense, and likely trigger a new round of sanctions and counter-sanctions that would further fragment global trade. China, meanwhile, would continue doing what it does best: making things. While American factories retool for military production and American fiscal policy pivots toward wartime spending, Chinese manufacturers would fill the gaps in global supply chains for consumer goods, industrial equipment, and technology products.
This isn’t hypothetical. It’s a pattern. During the wars in Iraq and Afghanistan, the United States spent an estimated $8 trillion on military operations and related costs, according to Brown University’s Costs of War Project. During that same period, China’s GDP grew from roughly $1.3 trillion to over $17 trillion. Correlation isn’t causation, but the dynamic is clear: American military adventures abroad create economic space for Chinese expansion.
The financial system itself would face pressure. Sanctions are America’s weapon of choice in economic warfare, and any conflict with Iran would involve an expansion of the already-extensive sanctions regime. But sanctions work best when the dollar-based financial system is the only game in town. It increasingly isn’t. China’s Cross-Border Interbank Payment System, or CIPS, has been growing steadily as an alternative to SWIFT, the Western-dominated messaging network that underpins international financial transactions. A war that pushes more countries to seek alternatives to dollar-denominated trade would accelerate CIPS adoption — not because countries love China, but because they need options.
Russia’s experience after its 2022 invasion of Ukraine is instructive. Cut off from SWIFT and frozen out of dollar markets, Moscow pivoted hard toward Chinese financial infrastructure. The ruble-yuan trading pair became one of the most active currency pairs in the world almost overnight. Iran, already heavily sanctioned, has been conducting bilateral trade with China outside the dollar system for years. A wider war would push more fence-sitting nations — India, Brazil, Saudi Arabia, the UAE — to build redundancy into their financial systems. That redundancy, by default, runs through Beijing.
There’s a geopolitical dimension too. China has been positioning itself as a broker of stability in the Middle East. Its 2023 mediation of the Saudi-Iran rapprochement was a diplomatic coup that caught Washington off guard. A U.S. war with Iran would demolish whatever remains of America’s credibility as an honest broker in the region and hand China an enormous soft-power advantage. Countries across the Global South, already skeptical of Western interventionism, would gravitate further toward Beijing’s model of economic engagement without military strings attached.
So what’s the counterargument? Some analysts contend that a short, decisive conflict — strikes on Iran’s nuclear facilities followed by a quick de-escalation — wouldn’t trigger the cascading economic effects described above. That’s possible in theory. In practice, wars in the Middle East have a stubborn tendency to expand beyond their intended scope. The 2003 invasion of Iraq was supposed to be quick too.
Others point out that China’s economy has its own vulnerabilities. A global recession triggered by an oil shock would reduce demand for Chinese exports. Property sector weakness, demographic decline, and high youth unemployment already weigh on Beijing’s growth prospects. A war-induced global downturn could exacerbate all of these problems.
Fair enough. But the relative positioning matters more than the absolute impact. If a U.S.-Iran war causes a global recession, both the American and Chinese economies would suffer. The question is who recovers faster and who emerges with a stronger structural position. China’s state-directed economic model, massive domestic market, and dominance in future-facing industries give it advantages in a post-conflict recovery that the United States, burdened by war debt and fractured alliances, would struggle to match.
Recent developments have only sharpened these dynamics. Reporting from Reuters in early 2025 indicated that China’s strategic petroleum reserves had reached their highest levels in years, suggesting Beijing is actively preparing for supply disruptions. Meanwhile, the Financial Times has documented the continued expansion of yuan-denominated trade settlements across Asia and the Middle East, a trend that would accelerate dramatically in a conflict scenario.
The irony is thick. The United States has spent decades building a military presence in the Middle East partly to secure energy supplies and maintain the dollar’s dominance. A war with Iran could undermine both objectives simultaneously — driving oil prices to levels that make alternatives irresistible while pushing the global financial system toward the very de-dollarization that American policymakers have been trying to prevent.
None of this means a U.S.-Iran war is inevitable. Diplomacy, deterrence, and sheer inertia have prevented one for over four decades. But the economic calculus should be part of the conversation in ways it currently isn’t. The Pentagon models military scenarios. The State Department models diplomatic ones. Someone in Washington should be modeling the scenario in which the biggest winner of an American war in the Middle East is a country 4,000 miles away that never fires a shot.
China doesn’t need to fight a war to win one. It just needs the United States to fight one for it.
WebProNews is an iEntry Publication