Geopolitics

Oil Is Back Above $100: Why Force Won't Solve the Iran Problem

Published October 19, 2026

In short

Military force can at most delay an Iranian bomb, not prevent it. The realistic way out of the oil-and-inflation shock is economic development, not more pressure.

This is an opinion piece and reflects the author’s personal view. Facts are current as of October 18, 2026.

The conflict between the US and Iran has flared up again, and oil is back above $100 a barrel. On October 16, Brent crude jumped more than 3% in a single day to about $109, and US WTI crude rose above $100 for the first time since late September. That same week the Nasdaq fell more than 4% and the S&P 500 had its worst week since January. A sell-off in AI stocks was the main driver, but expensive oil, which feeds inflation and squeezes valuations, is adding weight to an already fragile economy. Moody’s estimates the war has already cost each American household about $2,000.

On the surface, all of this comes from Washington’s goal of keeping Iran from getting a nuclear weapon. That goal is reasonable. The question is whether the current approach can actually achieve it.

Bombing, decapitation, sanctions: none of it has worked

Bombing. The air strikes of June 2025 and of the war that began in 2026 destroyed or badly damaged Iran’s known enrichment sites. They did not destroy the regime, and they certainly did not break its real backbone, the Islamic Revolutionary Guard Corps (IRGC).

Decapitation. On February 28, Supreme Leader Ali Khamenei was killed in a joint US–Israeli strike. The result? In less than two weeks his son, Mojtaba Khamenei, was installed as supreme leader, while the IRGC’s generals took real control of the country and the war. Khamenei had already spread command across dozens of units able to act on their own. Killing the man at the top did not stop the machine.

Ground troops. Fully toppling a regime usually takes troops on the ground. With the cost of the Iraq war still fresh, it is almost politically impossible for the US to send a large army into Iran.

Sanctions and blockades. When the US squeezes Iran’s economic lifeline, Iran squeezes the world’s. The Strait of Hormuz carries about a fifth of global oil and liquefied natural gas shipments. As the US blockades Iranian ports, Iran steps up attacks on ships around the strait. The bill for that pressure ends up being split among consumers everywhere.

Why “squeeze until the people rise up” is unlikely to work

One quiet hope behind sanctions is that hardship will push Iranians to overthrow the regime. But in practice, the economic pain falls almost entirely on ordinary people (food inflation in Iran has topped 100% this year), while the IRGC controls large parts of the economy and can keep itself supplied.

Popular uprisings have toppled regimes before, and Iran’s own 1979 revolution is one example. But they usually succeed only when the army and security forces switch sides or stand aside. With the IRGC still united and equipped with modern surveillance and crowd-control tools, Iran’s mass protests in 2009, 2019 and 2022 were all crushed. Hoping for a different outcome this time means Iranian civilians pay the price while the regime stays in place.

Meanwhile, voters in democracies have limited patience for high fuel prices and inflation. In this war of endurance, the side that cracks first may well be the one applying the pressure. That is the harsh reality.

The nuclear question: delay is possible, prevention is hard

According to the International Atomic Energy Agency (IAEA), Iran still holds more than 200 kilograms of uranium enriched to 60%, mostly in tunnels at Isfahan. Iran has not told the IAEA how much survived or where it is, and inspectors have not returned to the bombed sites. Experts say that with this material, Iran could reach weapons grade without much equipment if it decided to.

My view is that without ground troops, force can at most delay an Iranian bomb. Constant pressure may even convince Tehran that only nuclear weapons can guarantee the regime’s survival.

What can really defuse the conflict is the economy

If force cannot solve the problem, it makes more sense to put the effort into the economy than to keep escalating.

Prosperity ties countries’ interests together and makes war expensive. The logic is not automatic, though. Before World War I, Europe’s economies were closely linked, and war broke out anyway, so trade alone does not guarantee peace. On the other hand, the Great Depression and the trade barriers of the 1930s clearly helped pave the way for extremist politics and World War II. A more accurate way to put it: economic ties don’t guarantee peace, but economic collapse almost always makes the world more dangerous.

The same applies to the Middle East. When ordinary people have jobs, income and better education, they care more about a stable life than about fighting and sacrifice. Historically, as economies and education developed, religion in many societies gradually shifted from a tool of rule to a personal choice of faith, and the ground that theocracy and dictatorship grow in became thinner. That process is slow, but it lasts longer than bombing.

The Russia–Ukraine war is another example. I don’t believe the invasion was right. But after the West sanctioned Russia and pushed it into a war economy, Russia dragged Europe into an energy crisis in return. Europe’s economy was already weak; add this year’s Iran energy shock, and the German Institute for Economic Research (DIW) has cut its 2026 growth forecast for Germany from 1.0% to 0.5% and warned of a possible technical recession. A slowing Europe in turn drags on the global economy.

The other side of the argument

To be fair, there are serious counterarguments:

Economic engagement doesn’t necessarily change a regime’s behaviour. After the 2015 nuclear deal, Iran received some sanctions relief, and critics argue part of that money went to regional proxy militias rather than to improving people’s lives.
Wealth is not the same as openness. Some Gulf states are very rich but remain highly centralised politically.
Accepting a nuclear Iran could set off a regional arms race. Saudi Arabia and others might follow, making the Middle East even more dangerous.

These concerns are valid. But the answer to them is not necessarily a war that keeps draining the global economy.

Conclusion

If no one is truly willing to use full-scale force, the priority should be protecting the economy. When economies are healthy and interests are linked, every side has a reason to negotiate. When economies are weak, war and repressive rule have room to grow.

What this means for markets

Oil: As long as shipping through the Strait of Hormuz is at risk, oil will react sharply to every attack and blockade headline.
Inflation and rates: Expensive oil lifts inflation expectations. Some banks now expect the Federal Reserve to raise rates around the turn of the year, which is especially tough on richly valued tech stocks.
Europe: An energy price shock on top of already weak growth is raising the risk of recession.
Negotiation headlines: Any progress toward a ceasefire or talks could quickly remove part of the risk premium built into oil prices.

Sources

This article is opinion and general analysis, not investment advice.