The official explanation for Operation Epic Fury has followed a familiar script. Nuclear threat. Regional destabilization. The security of American allies. Officials in Washington and Tel Aviv have repeated these phrases so often they have calcified into something resembling fact. But there is a prior question that neither government is prepared to answer in public: why now? Iran’s nuclear programme has been the stated justification for sanctions, covert sabotage, and diplomatic pressure for more than two decades. The threshold for military action was never purely technical. It required something else. It required a financial emergency.
That emergency has been building since August 1971, when Richard Nixon severed the dollar’s convertibility to gold and destroyed the Bretton Woods framework that had organized global finance since 1944. The solution Washington found was elegant in its brutality. In 1973 and 1974, the United States negotiated a series of agreements with Saudi Arabia under which Riyadh would price its oil exclusively in dollars and recycle the resulting surpluses into US Treasury bonds. In exchange, Washington guaranteed Saudi security. Oil became the dollar’s new backing. The petrodollar system was not a natural evolution of markets. It was a geopolitical construction designed to manufacture global demand for a currency that had just lost its commodity anchor.
A barrel of oil sold anywhere in the world required dollars to purchase. A nation that needed energy had to hold dollar reserves. Central banks on every continent became, in effect, buyers of American debt. For fifty years, this arrangement transferred an extraordinary structural subsidy to the United States: the ability to run permanent deficits, to finance military operations without immediate fiscal consequence, to impose sanctions by threatening to exclude any country from the dollar payment system. The Federal Reserve’s interest rate decisions became, automatically, the monetary policy of the entire planet. No country had been granted this kind of leverage without conquest. Washington received it through an oil deal.
The fracture lines appeared slowly at first. Russia’s removal from the SWIFT payment network following the 2022 invasion of Ukraine was intended to isolate Moscow. It had the opposite strategic effect. It demonstrated to every government watching that access to dollar-denominated systems was conditional, revocable, and subject to American political discretion. The lesson was absorbed across the Global South faster than any diplomatic cable could track.
China had already been preparing. In March 2018, the Shanghai International Energy Exchange launched yuan-denominated crude oil futures contracts, creating the first credible alternative benchmark to the dollar-priced Brent and WTI. By 2023, one fifth of all global oil trades were settled in currencies other than the dollar, according to data published by OilPrice.com citing JP Morgan research. That same year, JP Morgan recorded twelve major commodity contracts settled outside the dollar, compared with seven in 2022 and just two in the entire period from 2015 to 2021. The acceleration is not coincidental. It tracks the weaponization of dollar access as a sanctions instrument.
Iran is at the centre of this restructuring not because its nuclear programme became more dangerous in 2025 than it was in 2005, but because its integration into the alternative financial architecture became more operationally complete. China’s independent refineries, the so-called teapot operators concentrated in Shandong province, had by 2024 been importing Iranian crude at volumes nearly double their 2022 levels, according to ship tracking data compiled by Kpler. Payment flowed through renminbi accounts and small Chinese banks with no dollar exposure. The Wall Street Journal reported in late 2025 that China had constructed an entire covert payment infrastructure, linking state insurer Sinosure and a financial intermediary called Chuxin, routing up to 8.4 billion dollars in oil payments to Iran through infrastructure barter arrangements. There were no dollars in the transaction. There was no SWIFT exposure. The sanctions regime, built on dollar exclusion, had been architecturally bypassed.
Iran is dangerous to Washington in ways that its centrifuges alone never could be. Iran has become the operational proof that the sanctions system does not work. It exports 1.7 million barrels per day, earns billions in oil revenue, and does so entirely outside the dollar framework. If the dollar-exclusion mechanism cannot coerce Iran, it cannot coerce anyone with a willing large buyer and the patience to build shadow infrastructure. The lesson to every sanctioned government, and to every government that might one day become sanctioned, is that the exit route exists and has been mapped.
Iran joined BRICS in January 2024, alongside Egypt, Ethiopia, and the UAE. The expanded bloc now represents, by purchasing power parity, more than 40 percent of global GDP and, with Iran’s reserves included, a commanding share of global proven oil. The New Development Bank, BRICS’s multilateral lender, set a target of conducting 30 percent of its loans in local currencies by 2026. China’s Cross-Border Interbank Payment System had connected 1,467 indirect participants across 119 countries as of January 2025. Russia and Iran had formally agreed to eliminate the dollar entirely from their bilateral trade. Saudi Arabia, the original guarantor of the petrodollar arrangement, allowed its 50-year agreement with Washington to expire without renewal in June 2024 and subsequently joined Project mBridge, the multi-central bank digital currency platform. The architecture is operational.
Washington’s response to each of these developments has been escalation. Trump threatened BRICS members with 100 percent tariffs if they backed alternatives to the dollar. Brazil’s President Lula, previously the most vocal advocate for a common BRICS currency, quietly removed the proposal from the 2025 agenda. India signed a trade deal in February 2026 in which it agreed to halt purchases of Russian oil in exchange for US tariff reductions. Each move is a calculated effort to abort the construction of an alternative monetary order before it completes.
As of 2024, the dollar remains involved in approximately 89 percent of all foreign exchange transactions and accounts for 56 percent of global central bank reserves, according to the Atlantic Council. The renminbi, despite China’s sustained effort to internationalize it, handles between 2 and 4 percent of SWIFT payments and around 7 percent of foreign exchange transactions. The dollar’s share of global reserves has declined from roughly 85 percent in the 1970s to 58 percent by 2022, a substantial erosion over five decades, but the dollar has not been displaced in any market that determines the price of daily economic life. The petrodollar system is corroding.
That distinction matters, because a collapsing system produces a different kind of response than a corroding one. A collapse can be managed, absorbed, negotiated. Corrosion is structural and cumulative. Every rupee-denominated oil deal, every yuan-settled crude cargo, every ton of gold added to a central bank reserve instead of Treasury bonds represents a marginal reduction in the demand for dollars. Individually, each transaction is invisible to financial markets. Collectively, over the decade that this process has been accelerating, they represent a slow withdrawal of the structural subsidy that has allowed Washington to borrow without limit, sanction without cost, and project military power without fiscal consequence. The system’s enforcers know this. They have known it for years.
Operation Epic Fury, launched on February 28, 2026, was presented as a response to Iran’s nuclear programme. The nuclear programme is real. The enrichment is real. But the timing is the tell.
The strikes arrived after Iran’s shadow export infrastructure had been documented, mapped, and reported across Western financial intelligence. The petrodollar agreement with Saudi Arabia had already expired. BRICS had absorbed Iran, the UAE, Egypt, and Ethiopia into a bloc that could theoretically control half of global oil production. China had demonstrated, at scale and in practice, that it could buy Iranian oil entirely outside the dollar system, process it in Shandong, and route the payment through barter and digital yuan with no SWIFT exposure whatsoever. The window chosen was the moment when the proof of concept was complete and the alternative architecture was beginning to scale.
The nuclear framing does the work of public justification. The financial logic does the work of explanation. These are not mutually exclusive. States rarely act for a single reason. But when a government has spent twenty years tolerating Iran’s nuclear programme, enduring its proxy networks, surviving its missile tests, and absorbing its regional adventurism, and then chooses a specific window to apply kinetic force, the question of what changed in that window deserves an answer that goes beyond the enrichment figures released by the IAEA.
What changed was the monetary calculus. Iran, under maximum pressure, was supposed to demonstrate that the dollar exclusion system works. Instead, it demonstrated that the system has a ceiling. China built under it. Iran exported through it. The shadow fleet moved the barrels. The yuan moved the money. The proof existed, was being observed, and was being noted by every government considering its options.
The conventional framing of this war places it inside a Middle Eastern regional conflict with nuclear dimensions. The financial framing places it inside a longer struggle over who controls the price of everything, because whoever controls the currency in which energy is priced controls the terms of every other economic transaction on earth.
Pakistan understands this without being told. Its fuel import bill is denominated in dollars. Its IMF programme is negotiated in dollars. The depreciation of the rupee against the dollar is a direct transmission mechanism from American monetary policy to Pakistani household purchasing power. When the Federal Reserve raises interest rates, Pakistani families pay for it in the price of flour and gas. It is the operating arithmetic of a system designed to distribute the costs of American monetary management globally while retaining the benefits in Washington.
The countries of the Global South did not build the petrodollar system. They were incorporated into it after the fact, as customers of a currency they do not issue, paying interest on debt denominated in that currency, subject to sanctions enforced through that currency’s payment infrastructure. The BRICS de-dollarization movement is, for most of its members, a risk management exercise rather than an ideological project. Countries that watched Russia lose access to hundreds of billions in frozen reserves overnight drew their own conclusions about the wisdom of holding dollar assets.
The war does not resolve the monetary question. It can destroy Iranian oil infrastructure and reduce Iranian exports. The 50-year petrodollar agreement with Saudi Arabia expired in June 2024 and no military operation rebuilds it. Yuan-denominated crude futures continue trading in Shanghai. India’s supply line to Russian oil was severed by diplomatic pressure, not replaced by anything. China’s CIPS system, now linking 4,800 banks across 185 countries, operates outside American jurisdiction. The $28.8 billion in US Treasuries that BRICS members sold in late 2025 is gone from the balance sheet.
The BRICS Pay system is piloting through 2027. The BRICS Unit, backed 40 percent by gold and silver, launched its pilot programme in October 2025. The New Development Bank now delivers one third of its loans in local currencies. Each of these developments moves slowly enough that no single headline captures its significance. Cumulatively, they represent the construction of a parallel financial infrastructure that does not require American approval to operate.
Military force can delay that construction. It cannot reverse it. The economics of the alternative system make too much sense to too many countries with too direct an interest in reducing their exposure to dollar volatility and sanctions risk. The threat of 100 percent tariffs frightened Lula into silence on a common currency. It did not stop the rupee oil deals or the yuan cargo settlements or the Chuxin payment network or the shadow fleet moving Iranian barrels through Malaysian waters to Shandong refineries.
The United States has deployed its last and most powerful instrument of enforcement. The question is not whether bombing Iran changes the nuclear situation. The question is whether bombing Iran changes the financial calculation of the governments watching from Riyadh, Beijing, New Delhi, Ankara, and Jakarta. Based on what those governments have already built and are continuing to build, the answer is already legible.
Sources
U.S. Federal Reserve: dollar reserve share data
Richard Nixon: 1971 suspension of dollar convertibility
Council on Foreign Relations: the dollar’s role in global energy markets
IMF: global reserve currency data
BRICS: 17th BRICS Summit Joint Declaration, Rio de Janeiro, July 2025
Reuters: BRICS currency and energy trade coverage
Brookings Institution: sanctions and dollar weaponization analysis
Atlantic Council: dollar dominance data, November 2025
JP Morgan Global Research: non-dollar commodity settlement data, October 2025
OilPrice.com: JP Morgan data on non-dollar oil trade volumes, 2023
Wall Street Journal: Chuxin payment network investigation, 2025
Kpler: ship tracking data on Iranian crude exports
GIS Reports: Iranian oil export volumes
UANI: Chinese teapot refinery purchases of Iranian crude
China CIPS: participant and connectivity data, January 2025
New Development Bank: local currency lending targets