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The folly of the Iran war

The March of Folly by Barbara Tuchman that was published in 1984 chronicled 30 centuries of governments taking actions against their self-interest, starting with how Trojan rulers dragged inside their walls an odd-looking wooden horse despite warnings of Greek tricks.

If the book was written today, it would surely include the decision by US President Donald Turmp to attack Iran because he was warned Tehran would weaponise the Strait of Hormuz and retaliate against its neighbours. No matter. With Israel, Trump attacked. Adding to the economic damage is Trump blockading the Strait to open a waterway that was open before the war began.

Trump’s problem is Tehran recognises the Strait is a ransom tool, by virtue that on any given day the waterway hosts 20% of the world’s exports of oil and natural gas, plus fertilisers needed for farming, plastics for household use, helium and more to make microchips, bitumen for roads, and materials such as aluminium for cars and sulphur for copper production.

The interruption to the shipping of these essentials is the war’s overarching assault on the world economy. The shortage-driven surge in the prices of these staples, which might only be starting, is boosting inflation – Australia’s has already surged to 4.6% while it’s reached 3.8% in the US – and interest rates, especially bond yields. Growth is threatened as people curb oil-driven consumption and struggle with higher rates. The combination warns of the re-emergence of the 1970s torment of stagflation, which is shorthand for high inflation during recessions.

A second harm from the war is damaged Gulf economies (including Iran’s smashed one). Iranian attacks on energy assets and the region’s hubs have jeopardised Gulf plans to create stable business, energy, cultural and tourist oases. Arab leaders are worried enough to have requested US emergency facilities (dollar swap lines) to protect against blocked energy exports and missing travellers.

The damage to the Arab world will limit the investment the West enjoys from Gulf sovereign wealth funds, which, holding about US$6 trillion in assets, are among the world’s biggest investors. Gulf authorities may even sell foreign assets, which could shake the West’s asset markets.

A third blow is how the war batters developing countries. Poorer countries must pay more for oil and fertilisers. Those that can’t face energy and food shortages, possibly famines. Their factories are short of inputs. Many countries are missing out on the estimated US$100 billion their expatriates remit each year from the Gulf. They confront higher interest repayments on their foreign debt. The danger is US rates climb enough to trigger a debt crisis.

A fourth repercussion of the war is the crumbling of global alliances, which, even with free-loading allies, are a cost-effective way to pay for protection. Indebted governments everywhere are spending more on arms. That is straining budgets and boosting government bond yields possibly to the point of crisis.

A fifth blow is the war re-highlights the risk of relying on global supply chains. Governments will intensify efforts to ‘reshore’ or ‘friendshore’ the production of necessities. They might subsidise renewable energy to reduce Gulf oil dependence while doubling down on relying on non-Gulf fossil fuels. This focus on security will override efficiency.

A sixth hit from the war is the breakdown of the ‘petrodollar accord’ of 1974 that helped propel the US dollar to reserve status when Saudi Arabia agreed to price oil in greenbacks in return for Washington’s protection.

China and India are paying for Gulf oil in yuan and ships have reportedly paid Iran in yuan and crypto to pass along its southern shore. This will speed the development of payments networks in euros and yuan that US foes are building to escape Washington’s financial sanctions gifted by dominance of the US dollar system. Multiple payments systems are a costlier, murkier and riskier way to operate global finance.

The war’s blows to the global economy are exacerbated by other Trump actions. One is the threat to the Federal Reserve’s credibility with Kevin Warsh as Fed chair. How will Trump react if Warsh fails to cut rates even though inflation has been above the Fed’s target of 2% for five years and is accelerating? How will investors react if Warsh cuts rates when inflation surges to double or even triple the Fed’s target?

Another covers Trump’s on-off tariffs that were imposed on nearly all US trading partners last year. Trump has lowered, postponed or made temporary these import charges due to lobbying, the granting of gifts and, above all, after adverse investor reaction. His tariffs imposed under the International Emergency Economic Powers Act of 1977 were ruled illegal by the Supreme Court, but Trump is seeking to reimpose these import taxes under other statutes. However done, tariffs boost costs thus inflation, upset business plans and create global political frictions.

The uncertainty surrounding US tariff policy feeds into the norm-breaking, policy shifts, treaty smashing and other uncertainties stemming from Trump’s administration that deepen political polarisation, deter business investment and labour hiring and sap at consumer spending.

These threats have burst on an indebted world economy that has feeble defences against recessions. Governments are too indebted to offer much fiscal stimulus to support economies. Faster inflation rules out monetary stimulus by central banks, highlighting how stagflation snookers policymakers. Geopolitical cleavages work against international cooperation. Other risks include that hopes for artificial intelligence have driven stock-market valuations to record highs and troubles surfacing in US private credit.

Given all this, the damage from the Iran war could prove impossible to contain and morph into another global financial crisis. This may not be evident yet. But it will be soon.

Sure, stocks at record highs argue against doom. But note that bond investors, all professional unlike stock peers, are gloomy. The United Arab Emirates’s exit from OPEC will boost oil flows. But only when the war is over. The US economy is spared the worst of the war’s blows. But that might harden Trump’s bargaining positioning and ultimately magnify the war’s damage. Record-low US consumer confidence, rising petrol prices and accelerating inflation warn of some damage already too for the US. Advanced economies overall, with their rule of law that underpins Adam Smith’s invisible hand and Joseph Schumpeter’s creative destruction, can survive much.

But perhaps not what the folly of launching the Iran war has foreseeably unleashed.

 

Michael Collins is a freelance writer and editor, economist, and investment specialist. Republished with permission from the author’s Substack newsletter @denouementwatch.

 

  •   20 May 2026
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20 Comments
Dave Roberts
May 22, 2026

Ayatollah Khamanei had issued a fatwa against producing a nuclear weapon. As stated in letter below all was under control until Trump tore up the accord in his first term.

8
Andrew Smith
May 24, 2026

Strategic incompetence by the US, plus UAE and Israel for other reasons; Iran or Persia and the Straits of Hormuz have been there forever, people have just realised?

Strategic geniuses here and in the White House were not satisfied with existing agreements and status quo (inc. Gulf Nations) on Iran to start a war with no strategy; now Trump has Taco'ed into giving Iran what it wants? Sheer MAGA incompetence.....

More evidence of the need for Australia to decouple from geopolitical 'strategies' and chaos of the Anglosphere and US White House plus it's allies in the Kremlin and the Middle East, then like Canada move back closer to Asia and the EU (with whom we have a free trade agreement; something the UK does not have).

2
Alex
May 26, 2026

There have been 67,000 Islamist terrorist attacks globally since 1979 resulting in at least 250,000 deaths, including most recently in Sydney.

The Persian people are wonderful with an incredibly rich heritage.

It is the evil islamist terrorists in charge of Iran, responsible for every one of those 250,000 deaths, that must be eliminated.

The world will be a much better and safer place.

Thank God for President Trump and the USA.

1
Bryan
May 21, 2026

The consequences of a nuclear weapon in the hands of the Iranian mullahs is too awful to contemplate - and not only for Israel. That Trump acted when the rest of the West stood silent is something we should be thankful for and if the temporary high cost of oil and its consequences are something we must suffer, then so be it. Look past the man and his awful persona and be thankful for his actions.

18
Ian
May 21, 2026

It's a pity Firstlinks has decided to politicise itself. Michael Collins clearly hates Trump and provides a very one sided analysis of the conflict. Party political articles are best left for other publications.

15
Mark LaMonica
May 21, 2026

Hi Ian -

The reason I selected the article was because the economic ramifications of the Iran War are being felt around the world and geo-political impacts will continue long after the war. As some comments pointed out it might be an appropriate price to pay. This is an Australian publication and few readers of Firstlinks can vote in a US election so I disagree that this is 'political' or anti-Trump - it is simply questioning one of his policy decisions.

16
Susan Roberts
May 24, 2026

Fair point!

2
Ian
May 21, 2026

A nuclear armed Iran is certainly not desirable, but all trump had to do was leave the JCPOA in place.

The "P5+1" countries and the IAEA inspectors were comfortable than Iran was broadly keeping to the agreement. No nuclear weapons being developed.

The JCPOA was working just fine. Then trump cancelled it for the same reason dogs wee on lamp posts.

12
Cam
May 21, 2026

There's certainly a lot of economic consequences. Freedom is never free though. I'm a novice on the merits of the action against Iran's regime, but it may well stack up that it was necessary and we all pay a price for the action being needed.
I expect there's a lot of Australians who are happy to be paying a lot more for electricity for the betterment of the planet but are unhappy for things to cost more to remove a nuclear threat and possibly free the citizens of Iran.
I'm a bit disappointed that it was known that Iran could use the Strait as a tool in a war and yet Australia and no doubt most other countries did nothing to prepare.

10
Dudley
May 22, 2026

'Saudi Arabia’s East-West Crude Oil Pipeline (Petroline) is a 1,200 km (746-mile) strategic corridor spanning the Arabian Peninsula. It connects the Abqaiq processing facilities in the Eastern Province to the Red Sea port of Yanbu. Built in the 1980s, the system enables Saudi Aramco to bypass the Strait of Hormuz.'

'Capable of moving up to 7 million barrels per day'

'The Habshan-Fujairah oil pipeline (also known as the Abu Dhabi Crude Oil Pipeline or ADCOP) is a 380-kilometer route that transports crude from Abu Dhabi’s onshore fields to the port of Fujairah on the Gulf of Oman, allowing the UAE to bypass the Strait of Hormuz.'

'capacity of roughly 1.8 million barrels per day'

1
john
May 24, 2026

The evidence is that Iran will come out more powerful and less democratic.

3
Vinnie
May 25, 2026

Yep it's farcical to think one of the oldest civilisations would fold. Investors should not ignore politics or history as it's clear how this is now most likely to play out over next 2-3 years. Israel and Trump have made the world a much more dangerous place. So many willfully ignore the historic context of US interfering in Iran elections via CIA overthrown the democratic elected govt over oil rights, and backing Saddam to use of chemical weapons against the Iranian civilian population. So few know Bibi was funding HAMAS to stop the PLO getting a two state solution. What people in history would ever accept this fait being dealt to them without looking to fight back ? The world is changing its side of who in fact is the good and bad. This will play out against the current aggressors.

Stefy01
May 21, 2026

The petrodollar accord with Saudi Aria ended over two years ago.
The erosion in petrodollar dominance, and the beginnings of the petroyuan are here and now.
You only had to see the rushed Trump meeting in China, and the mood of Trump and his cohorts after to know who is now in ascendence.

7
Norman
May 24, 2026

I can't help thinking that the so-called Israel+USA vs Iran is a businessman's war: of how this "MAGA" ploy has made many in the USA rich, especially shareholders in some oil majors based in the USA. This is apart from the USA export earnings from military equipment and supplies, mostly from the USA. It's a good business decision to make a threat than have an apparent TACO and then back to another threat when the buyers who bought at low P/E, sold at high and then buy again if there is a drop. Capital gains may not have such an influence on those investing in the "war".

5
John
May 24, 2026

The current world wide oil price situation is a trump inflicted origin and was totally unnecessary. Would not have occurred if Harris or someone else had been elected (Obama would have been terrific if it was allowed). It has caused immense widespread needless suffering and pain in several countries, esp the middle east, and including internally within the USA.
Ah, but we're not talking about the Epstein files anymore, so, Mission Accomplished!
Pity the next President who has to sort out all these messes trump is leaving us with - assuming of course it is a sane one instead of what is there now

Australia could be the next Venezuela style target if we displease trump by continuing to purchase chinese made EVs - ?Just remember my prediction

3
Dan
May 24, 2026

I’m sorry Michael has contracted Trump derangement syndrome.
The weight of money in global capital markets “trumps” one talking head.

1
Cameron
May 26, 2026

I’m gobsmacked that some think this is about preventing Iran from having a nuke. If that was the agenda, there were many more less objective options available, not trashing the Obama deal being the simplest. Trump is an idiotic wrecking ball and it is quite right to point out that his actions could bring the house down.

1
LEATH HUNT
May 22, 2026

My son reminded me that the USA has not won any wars They have pulled out. If they start one with Iran they might come of 2nd best, who knows ??

Bryan
May 24, 2026

Your son should look back ton 1945.

5
 

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