Iran’s Zagros mountain range has plenty of places to conceal and launch drones and missiles that can threaten Gulf shipping

As war reshapes the Gulf, a stark reality is emerging: Iran’s most powerful weapon may not be nuclear at all. Control of the Strait of Hormuz — a narrow artery carrying roughly a fifth of global oil — is proving a decisive strategic lever.

Despite heavy US-Israeli strikes, Tehran retains the ability to choke global energy flows, forcing rivals to reckon with geography as destiny.

Bombed — But Not Broken

The campaign ordered under Donald Trump inflicted major damage on Iran’s leadership and infrastructure. Yet it failed to dislodge Iran’s grip over the Gulf’s most critical shipping lane.

That gap between military success and strategic control is now driving a reassessment: Iran may already possess a deterrent more immediate than nuclear capability.

Geography as a Weapon System

Iran’s coastline and terrain give it unique advantages. Narrow channels, concealed launch points and mountainous cover allow rapid deployment of drones, missiles and fast attack boats.

Even limited disruption can render shipping commercially unviable. Insurance collapses, tankers reroute — and the global economy feels the shock within days.

Decades of Signalling, Now Tested

This is no new doctrine. Tehran has long threatened to close Hormuz, rehearsing tactics from mine-laying to tanker seizures.

What has changed is credibility. After direct confrontation, Iran has demonstrated it can impose real costs — reinforcing deterrence without crossing into nuclear escalation.

Deterrence Rewritten — But Not Replaced

Analysts caution against overstating the shift. Iran’s strategy has always been layered, combining missiles, regional allies and strategic chokepoints.

Control of Hormuz strengthens that mix but does not replace it. Nuclear “hedging” may continue in the background, preserving long-term options.

Regional Ripple Effects Build

For Gulf states, the implications are immediate. Vulnerability to disruption — and limited ability to respond — is fuelling anxiety and pushing calls for de-escalation.

At the same time, weakening proxy networks may push Tehran to rely more heavily on direct leverage at sea.

A New Balance — Fragile and Volatile

If deterrence is about convincing adversaries the cost is too high, Iran may have succeeded — at least for now. The ability to hold global oil flows hostage changes the calculation for Washington and its allies.

But it also raises the stakes. In a region already on edge, a single miscalculation in Hormuz could trigger consequences far beyond the battlefield.

Has the Strait of Hormuz emerged as Iran’s most powerful form of deterrence?

Every day the Strait is closed costs Iran $450 million dollars. It costs the USA almost nothing,

7 minutes ago, Yellowtail said:

Every day the Strait is closed costs Iran $450 billion dollars. It costs the USA almost nothing,

It cant be billion thats an awful lot. Probably million ?

Yeah I think you got your numbers reversed there 😂

3 minutes ago, blaze master said:

It cant be billion thats an awful lot. Probably million ?

Million, my bad. thanks

3 minutes ago, johng said:

Yeah I think you got your numbers reversed there 😂

Did you even read it? That was the first six days of the war.

11 minutes ago, Yellowtail said:

Did you even read it? That was the first six days of the war.

Yes and how has the cost come down 55 days later ?

1 minute ago, johng said:

Yes and how has the cost come down 55 days later ?

Moving ships, flying hundreds of missions, bombing tens of thousands of targets is expensive.

Laying off the coast, stopping Iranian vessels from passing, not so much. In any event, all the personnel have to be fed and paid, and the equipment still has to be maintained. It does not cost much more to have a fire department put out a fire now and them, than to have a fire department that never puts out a fire.

The increased cost of energy and goods is a concern, as is the political damage the left is doing is costly, but bearable.

A billion a day is not much in the scheme of things.

32 minutes ago, Yellowtail said:

Every day the Strait is closed costs Iran $450 million dollars. It costs the USA almost nothing,

The Economic Costs of the Iran War

The Honest Broker By Roger Pielke Jr. April 2, 2026

Last month, the Center for Strategic and International Studies estimated that the war in Iran had cost the U.S. Treasury $12.7 billion over the first 12 days of the war.1 If we project that daily cost forward to April 1, we get a total estimate of about $35 billion of more than $210 per IRS tax return or ~$260 per household.

I was curious about how much the war has U.S. consumers beyond the direct costs to the government, and how high those costs might get if the war continues. The post reports what I’ve learned so far. All data and links to sources can be found in an Excel file at the bottom of this post, for paid THB subscribers.

The categories I have explored include fuel costs — gasoline, diesel, jet fuel, along with fertilizer costs and the impact on equites. The summary table below shows costs for fuels, fertilizers, and market cap losses, through April 1. For fuels and fertilizers the table projects three scenarios through June 30 — current prices extended, current prices + 25%, and current prices -25%. The September 30 projection just shows current prices extended.

https://ctse.aei.org/the-economic-costs-of-the-iran-war/

4 minutes ago, Jeff the Chef said:

The Economic Costs of the Iran War

The Honest Broker By Roger Pielke Jr. April 2, 2026

Last month, the Center for Strategic and International Studies estimated that the war in Iran had cost the U.S. Treasury $12.7 billion over the first 12 days of the war.1 If we project that daily cost forward to April 1, we get a total estimate of about $35 billion of more than $210 per IRS tax return or ~$260 per household.

I was curious about how much the war has U.S. consumers beyond the direct costs to the government, and how high those costs might get if the war continues. The post reports what I’ve learned so far. All data and links to sources can be found in an Excel file at the bottom of this post, for paid THB subscribers.

The categories I have explored include fuel costs — gasoline, diesel, jet fuel, along with fertilizer costs and the impact on equites. The summary table below shows costs for fuels, fertilizers, and market cap losses, through April 1. For fuels and fertilizers the table projects three scenarios through June 30 — current prices extended, current prices + 25%, and current prices -25%. The September 30 projection just shows current prices extended.

https://ctse.aei.org/the-economic-costs-of-the-iran-war/

Ah, another leftist regurgitating, how refreshing.

3 minutes ago, Yellowtail said:

A billion a day is not much in the scheme of things.

Well not if you are paying the bill..but since the US is trillions in dept already it does not make a difference , they are well and truly done and dusted..the shift away from the 'Petro Dollar' gains momentum

hopefully the evil empire will be forced to retreat back to its lair no longer able to sustain the 800+ military bases wreaking death and destruction around the world...good riddance to a very bad idea MAGA

Make America Go Away 🤩

Long term use of Hormuz will diminish when other routes for oil and gas become available

The Iranians will be like the morlocks living underground where everything on the surface has been turned to rubble…