Why the War With Iran May Be About Oil, the Petrodollar, and the Global Energy System
by Jaffa Levy
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Published
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The war now unfolding with Iran may ultimately be remembered not as a narrow conflict over nuclear enrichment but as a struggle over the financial and energy architecture that has governed the world economy since the 1970s. Beneath the official language of nonproliferation lies a deeper contest over oil flows, currency power, the petrodollar and the survival of a geopolitical order built on the dollar and the security guarantees that sustain it.
Much of the public discussion about the war with Iran focuses on nuclear enrichment and the risk of a regional arms race. Yet energy systems and financial power may form the deeper strategic backdrop to the confrontation.
Since the 1970s, the global oil trade has been closely tied to the US dollar, creating the financial architecture that underpins American economic influence. Conflicts in the Middle East therefore often intersect with questions of energy routes, currency power, and control of the world’s most critical resource flows.
Public explanations for war often follow a familiar script. The crisis is described as urgent. The adversary is portrayed as approaching a dangerous technological threshold. Diplomacy is depicted as exhausted. Military action therefore becomes the reluctant but necessary final step.
The present confrontation with Iran is framed through precisely this lens. Western governments argue that Tehran’s uranium enrichment programme could eventually allow it to produce nuclear weapons.
Yet the deeper structure of the conflict suggests that something broader may be at stake. The Middle East sits at the intersection of energy supply, global finance, and military power. Control over these systems has shaped Western strategy in the region for decades.
The confrontation with Iran therefore cannot be understood solely through the prism of nuclear technology. It must also be examined through the lens of oil markets, currency dominance, and the evolving structure of global power.
The Iraq precedent
Modern Middle Eastern wars rarely unfold without historical echoes. The most obvious precedent is the invasion of Iraq in 2003, when the United States and its allies justified military intervention on the basis of alleged weapons of mass destruction.
Those claims were later discredited. Intelligence failures, political pressure, and flawed assessments produced a narrative that convinced Western publics that Saddam Hussein posed an imminent strategic threat.
The lesson from that episode is not simply that intelligence can be wrong. It is that geopolitical decisions often combine security concerns with broader strategic objectives.
The parallels with current tensions are not exact, but they are instructive. Iran has enriched uranium to levels that concern Western governments. At the same time, diplomatic negotiations over Iran’s nuclear programme have repeatedly taken place through intermediaries and international agencies.
The existence of negotiations complicates the idea that military confrontation is inevitable. It suggests instead that the nuclear question may form only one element of a wider geopolitical struggle.
The petrodollar system
To understand that wider struggle, it is necessary to return to the economic upheavals of the 1970s.
When the Bretton Woods monetary system collapsed in 1971, the United States lost the gold convertibility that had anchored the dollar since the end of the Second World War. Washington therefore faced a strategic problem: how to preserve the dollar’s global dominance without gold backing.
How the Petrodollar System Became the Hidden Foundation of Global Power
In 1974 a series of agreements between the United States and Saudi Arabia effectively tied the global oil trade to the US dollar. Oil would be priced primarily in dollars and oil exporters would recycle their surplus revenues into US financial assets such as Treasury bonds and American banks.
Because energy is the most widely traded commodity in the world, this arrangement created a permanent global demand for dollars. Countries importing oil needed dollar reserves to pay for it, while exporting countries reinvested those dollars back into US financial markets.
The system reinforced the role of the dollar as the dominant global currency and allowed the United States to finance large deficits more easily than other states. Any attempt by major energy producers to price oil in alternative currencies therefore carries geopolitical implications far beyond the energy market itself.
The result was the creation of what became known as the petrodollar system. Oil revenues circulated through the international banking system in dollars, strengthening the United States’ position at the centre of global finance.
Control over energy supply therefore became inseparable from monetary power.
Iran’s historical resistance to oil control
Iran occupies a unique position in this historical landscape. The country has long been at the centre of struggles over energy sovereignty.
Iran and the Long Struggle Over Control of Oil
In 1953 Iranian prime minister Mohammad Mosaddegh nationalized the Anglo Iranian Oil Company in an attempt to place Iran’s petroleum resources under national control.
The move triggered a covert operation supported by the United States and Britain that overthrew Mosaddegh and restored the Shah to power. The episode became one of the defining geopolitical interventions of the Cold War in the Middle East.
When the Iranian Revolution of 1979 toppled the Shah, the new Islamic Republic defined itself partly in opposition to foreign control of Iranian oil and economic policy. The legacy of that confrontation continues to shape Iranian political identity today.
Since then relations between Iran and the West have repeatedly intersected with questions of sanctions, energy supply, and regional power.
Israel and regional military enforcement
The strategic landscape of the Middle East also includes the role of Israel, which maintains one of the most technologically advanced militaries in the region and a close strategic partnership with the United States.
Israeli leaders have repeatedly warned that Iran’s nuclear programme poses an existential threat to the state of Israel. Tehran in turn views Israel as a forward military ally of the United States positioned within the Middle Eastern security architecture.
The rivalry between the two countries has intensified through proxy conflicts across the region and through direct exchanges of missiles and drones during periods of escalation.
The Strait of Hormuz
Energy geography magnifies the stakes of the confrontation.
Why the Strait of Hormuz Is the World’s Most Dangerous Energy Chokepoint
The Strait of Hormuz is a narrow maritime corridor between Iran and Oman that connects the Persian Gulf to the global ocean. Despite being only around twenty miles wide at its narrowest point, it carries roughly one fifth of the world’s traded oil supply.
Every day dozens of supertankers pass through the strait transporting crude oil from the Gulf states to Asia, Europe, and global markets. Because so much energy moves through this single passage, any military disruption to shipping can send immediate shockwaves through global energy prices.
Iran sits directly on the northern shore of the strait and possesses missile forces, naval mines, and coastal batteries capable of threatening tanker traffic. Even the possibility of disruption can trigger insurance spikes, shipping rerouting, and sudden increases in oil prices.
This geography makes the Strait of Hormuz one of the most strategically sensitive energy chokepoints in the world.
The economic limits of American war power
Even as the United States maintains unmatched global military capabilities, structural pressures within the American economy are becoming increasingly visible.
American defence spending already approaches a trillion dollars annually. At the same time the United States carries a public debt burden that has surpassed the size of the country’s entire economic output.
Historically, prolonged wars have often reshaped domestic economic policy. The Vietnam War, the wars in Iraq and Afghanistan, and other conflicts required enormous fiscal resources while producing uncertain strategic gains.
If the confrontation with Iran expands into a prolonged conflict involving naval deployments, missile campaigns, and regional escalation, the economic costs could rise rapidly.
Energy prices, inflation pressures, and fiscal deficits therefore become part of the strategic equation. War is not only fought with weapons. It is also fought with economic endurance.
A conflict over the structure of the global order
Seen from this wider perspective, the confrontation with Iran represents more than a dispute over uranium enrichment. It is embedded within the larger transformation of the international system.
The post Cold War world once appeared to be dominated by a single superpower and a stable financial architecture anchored by the dollar. That order is now evolving into a more complex multipolar system in which emerging powers seek greater autonomy over trade, energy, and finance.
Iran sits at a critical geographic crossroads within that transformation, linking the Persian Gulf energy basin to the Eurasian landmass.
If the present war expands, historians may ultimately conclude that the conflict was not primarily about nuclear technology at all. It was about control of energy, currency power, and the future architecture of the global economic order.
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