Exclusive: Why Iran’s Intervention in Syria Proved so Costly

Syrian regime soldiers walk down a street in the town of Al-Mohammadiyeh, east of the capital Damascus. AFP file photo
Syrian regime soldiers walk down a street in the town of Al-Mohammadiyeh, east of the capital Damascus. AFP file photo
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Exclusive: Why Iran’s Intervention in Syria Proved so Costly

Syrian regime soldiers walk down a street in the town of Al-Mohammadiyeh, east of the capital Damascus. AFP file photo
Syrian regime soldiers walk down a street in the town of Al-Mohammadiyeh, east of the capital Damascus. AFP file photo

Seven years after getting involved in the Syrian war, Iran may be beginning to have second thoughts about the wisdom of an adventure that shows no signs of ending. Several factors have contributed to what analysts believe could morph into a re-think of the costly strategy.

The first factor was official confirmation of Iran’s human losses in the war. Between November 2012 and 2017 Iran lost over 2,100 men, including 418 ranking officers while more than 7,000 Iranian “defenders of the shrines” were also wounded. Unofficial estimates for the losses of non-Iranian fighters, mostly Lebanese, Iraqi, Afghan and Pakistani, recruited and led by Iran, show several thousand casualties.

According to estimates by Iranian researchers using a survey of “funeral notices” published by the Lebanese branch of “Hezbollah,” the Iran-controlled militia led by Hassan Nasrallah has lost at least 1,400 men in combat in Syria. That is more than twice the number of men that “Hezbollah” lost in the 2006 war with Israel.

Western intelligence sources put the number of Iranian and Iran-led fighters in Syria at over 25,000. Thus, the losses they have sustained are far bigger than the classical military measure of “decimation” used to indicate the worst possible military performance. With that measure, Iran and the forces it leads in Syria should have lost no more than 2,500 men in total.

“The Syrian experience is a textbook case of poor planning and amateurish leadership,” says Hamid Zomorrodi a former naval officer and military analyst. “Those who decided to get Iran involved didn’t know what they wanted and were thus unable to decide what type of forces to commit and what tactics to adopt.”

According to a posthumously published account by General Hussein Hamadani, killed in combat in Syria, Tehran’s decision to intervene was aimed at preventing the fall of the head of the Syrian regime, Bashar al-Assad. However, Hamdani’s account shows that he and his fellow combatants were never told what they were supposed to do. Worse still, on arrival in Damascus, they realized that the Syrian military were far from keen on Iranian intervention.

“The Syrian military raised a wall of iron to keep us within limits.”

Unable to secure a central position within the broader strategy developed by the Syrian military, the Iranian contingent invented a justification for this presence by posing as “defender of the holy shrines.”

However, almost no one knew how many shrines there were or why they needed to be defended. More importantly, there was no sign of anybody wishing to attack those shrines in the middle of a larger war with much bigger objectives on all sides. The Iranians spent the first year of their presence putting together a list of shrines, coming up with the amazing number of over 10,000, many of them linked with Old Testament figures.

However, even supposing the objective was to protect “the shrines”, the elements sent to Syria were not trained for what was essentially a policing, not military, mission.

Iranian meddling in Syria has led Tehran into its biggest military losses since the eight-year war with Iraq. Iran’s military intervention in the 1970s in Oman against Communist-led insurgents in Dhofar claimed 69 Iranian lives.

According to General Ali Khorsand, who led that campaign, it succeeded because it was designed with “clock-work precision.”

“We knew what we were supposed to, how to get there and how to get out,” he claimed. “More importantly, we knew who was in command.”

In the case of the Syrian adventure, Iran’s involvement was not predicated on those conditions and, above all, lacked a clear command structure.

The Western, especially American media, have tried to build up Major-General Qassem Soleimani who heads the Quds (Jerusalem) Corps as the overall commander in the Syrian adventure. American magazines have put him on their cover and American TV has portrayed him as a swashbuckling knight on a white charger.

However, Soleimani, having spent almost his entire career at staff level, has had little field experience and is not capable of developing a strategic vision needed in a major conflict. By all accounts, Soleimani is a talented PR man and an efficient controller for the militias and agents paid by Iran in Lebanon, Iraq and elsewhere. But he is no military planner and his Quds Corps, which lacks combat units of its own, has never been anything more than a composite beast of intelligence, security, business, espionage, counter-espionage and propaganda.

Not knowing what type of forces was needed in Syria, Tehran left the sending of fighters there to personal choices of the “volunteers of martyrdom” and he hazards of the situation. Thus thousands of Iranians who had served in the Islamic Revolutionary Guard Corps (IRGC), the Baseej (Mobilization) of the Dispossessed, the Islamic Police (NAJA), the elite Islamic Green Berets and disparate other forces such as The Forestry Guard and even the navy went to Syria, treating that multifaceted war as if it were a tougher version of a Boy Scouts Jamboree. Among Iranian officers killed in Syria were at least 17 naval officers, including some experts in underwater fighting, although there was no water in the Syrian war.

The hodgepodge nature of those forces made it impossible to develop a coherent command-and-control system, especially in the context of asymmetric warfare against “enemies” using guerrilla tactics in their own home territory. Iranian fighters in Syria spoke no Arabic, knew nothing about the terrain and the culture, and were often shunned by the Syrian government’s armed forces. In the tragic case of Khan Touman, for example, the Syrian 4th Armored Division, simply refused to come to the aid of a besieged unit of Iranian Green Berets, left isolated and surrounded. In their hasty retreat Iran’s best fighters had to leave behind the dead bodies of 13 of their comrades.

Another problem is that the majority of Iranian “defenders of the shrine” are retired officers and NCOs, not at the height of their physical powers, or teenagers and young fighters with little or no combat experience. The 3-week “basic training” offered by Gen. Soleimani is not sufficient to train those volunteers in anything but driving military vehicles and handling weapons and ammunition.

The passage of years has not solved any of those problems.

Iranian forces don’t know what they are supposed to do apart from killing as many Syrians and possible. On occasions they become involved in classical positional warfare against “enemies” that specialize in hit-and-run. On other occasions they are confined to guarding and patrolling sites that are of no military interest.

The emergence of Russia from 2015 onwards as the chief orchestrator of the war in Syria has further confused the Iranians, limiting their margins of maneuver and reducing their overall influence.

Lacking an air force, Iran has not provided its forces in Syria with air support especially by helicopter gunships. Both Syria and Russia, which have the air power needed, have always refused to put their asset at the disposal of the Iranians or their Lebanese and other mercenaries.

In a closed system such as Khomeinist Iran it is not always possible to gauge public opinion. However, anecdotal evidence and musings within the establishment indicate growing weariness about a war which Iranians have never been fully informed about let alone approved.

An attempt almost two years ago to put General Mohsen Rezai, the former IRGC Commander, in charge of the Syrian war and relegate Gen. Soleimani to his public relations function was vetoed by “Supreme Guide” Ali Khamenei.

However, once again, the buzz in Tehran is about a new strategy and a new command structure for the Syrian war which, even if won, will give Iran no more than crumbs of victory.



Iran Nuclear Program ‘Badly Damaged’ But Not Wiped Out

This image from an Airbus Defense and Space's Pléiades Neo satellite shows a truck that analysts believe was carrying highly enriched uranium to a tunnel in the compound of the Isfahan Nuclear Technology Center, in Isfahan, Iran, June 9, 2025. (AP)
This image from an Airbus Defense and Space's Pléiades Neo satellite shows a truck that analysts believe was carrying highly enriched uranium to a tunnel in the compound of the Isfahan Nuclear Technology Center, in Isfahan, Iran, June 9, 2025. (AP)
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Iran Nuclear Program ‘Badly Damaged’ But Not Wiped Out

This image from an Airbus Defense and Space's Pléiades Neo satellite shows a truck that analysts believe was carrying highly enriched uranium to a tunnel in the compound of the Isfahan Nuclear Technology Center, in Isfahan, Iran, June 9, 2025. (AP)
This image from an Airbus Defense and Space's Pléiades Neo satellite shows a truck that analysts believe was carrying highly enriched uranium to a tunnel in the compound of the Isfahan Nuclear Technology Center, in Isfahan, Iran, June 9, 2025. (AP)

The United States and Israel may have obstructed the path towards a future Iran-built nuclear bomb by severely damaging Tehran's nuclear and ballistic capabilities in recent attacks.

But they have not succeeded in seizing its stockpile of highly enriched uranium, key to any future negotiations between Washington and Tehran, experts and diplomatic sources told AFP.

One of US President Donald Trump's justifications for the war he launched on February 28 was an accusation -- denied by Tehran -- that Iran was developing an atomic bomb. Trump has repeatedly vowed to never allow the country to possess a nuclear weapon.

Israeli Prime Minister Benjamin Netanyahu, for his part, has stated that the previous war waged against Iran, a 12-day conflict in June 2025, as well as the current one “wiped out” Iran's nuclear program.

But two European diplomatic sources, speaking on condition of anonymity, expressed caution about the future of Iran's atomic ambitions.

Immediately following the June 2025 strikes, “we were told the program had been set back by several years, before the figure was revised to just several months,” one source noted.

“Iran is no longer a threshold power as it once was,” an Israeli diplomatic source, who requested anonymity, told AFP.

A “threshold” state has the expertise, resources and facilities needed to develop a nuclear weapon on short notice should it choose to.

The source argued that, in addition to the infrastructure damage suffered, Iran's know-how “has been seriously undermined by the elimination of the scientists and officials” and the targeting of universities “where the data centers containing Iran's expertise were located.”

Substantial setback

“Overall, this conflict has set back Iran's nuclear program substantially,” said Spencer Faragasso of the Institute for Science and International Security, a US think tank that monitors Iran's nuclear program.

“It will take a significant amount of time, investment, and resources to reconstitute all of those lost capabilities,” he said.

However, “the gains from the conflict are not permanent by any means.”

Tehran still possesses a significant quantity of uranium enriched both to 60 percent, close to the 90% level required to make an atomic bomb, as well as a stockpile of uranium enriched to 20%, another critical threshold.

Prior to the US strikes in June 2025, the International Atomic Energy Agency (IAEA) calculated that Iran possessed approximately 440 kilograms of uranium enriched to 60%, well above the 3.67% limit set by a 2015 agreement from which the United States subsequently withdrew.

Since June 2025, the fate of this stockpile has remained uncertain, with Tehran refusing access to IAEA inspectors at the sites ravaged by US and Israeli strikes.

IAEA Director General Rafael Grossi has repeatedly called for the return of international experts.

Removing enriched uranium

Part of the stockpile of highly enriched uranium (HEU) is believed to remain buried in the tunnels at the Isfahan site in central Iran.

“At least 220 kilogram – roughly half of Iran's declared stockpile of 60% HEU – is believed to be stored in the underground tunnel complex at Isfahan,” said Faragasso.

“The status of the other half is unclear, but we believe it is buried under the rubble at Fordow as large significant quantities of 60% HEU were produced prior to the June 2025 war,” he said.

Only an independent inspection would be able to dispel these doubts.

The issue is how this uranium could be removed from Iranian territory under any eventual accord.

Russia reiterated on Monday that it remained ready to accept Iranian enriched uranium on its soil as part of any potential peace agreement between Washington and Tehran.

“This proposal was put forward by President (Vladimir) Putin during contacts with the United States and with countries in the region,” said Kremlin spokesman Dmitry Peskov, in response to a question from AFP.

But that scenario is a red line for the Europeans in view of the war that Russia has been waging against Ukraine for more than four years.

Moscow and Tehran are cooperating on nuclear matters through Iran's Bushehr power plant, built and operated with Russian assistance for civilian purposes.

The Iranians “don't have an ability to enrich uranium anymore... So it means they cannot build a nuclear bomb at the moment,” said Danny Orbach of the Hebrew University of Jerusalem.

“But they still have the enriched material, which is the hardest thing to obtain,” he said.


Rare Precedents for Lebanon-Israel Talks

US Secretary of State Marco Rubio (C), alongside US State Department Counselor Michael Needham (2L) and US Ambassador to Lebanon Michel Issa (2R), speaks during a meeting with Lebanon's Ambassador to the US Nada Hamadeh Moawad (out of frame) and Israeli Ambassador to the US Yechiel Leiter (out of frame) at the State Department in Washington, DC, on April 14, 2026. (AFP)
US Secretary of State Marco Rubio (C), alongside US State Department Counselor Michael Needham (2L) and US Ambassador to Lebanon Michel Issa (2R), speaks during a meeting with Lebanon's Ambassador to the US Nada Hamadeh Moawad (out of frame) and Israeli Ambassador to the US Yechiel Leiter (out of frame) at the State Department in Washington, DC, on April 14, 2026. (AFP)
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Rare Precedents for Lebanon-Israel Talks

US Secretary of State Marco Rubio (C), alongside US State Department Counselor Michael Needham (2L) and US Ambassador to Lebanon Michel Issa (2R), speaks during a meeting with Lebanon's Ambassador to the US Nada Hamadeh Moawad (out of frame) and Israeli Ambassador to the US Yechiel Leiter (out of frame) at the State Department in Washington, DC, on April 14, 2026. (AFP)
US Secretary of State Marco Rubio (C), alongside US State Department Counselor Michael Needham (2L) and US Ambassador to Lebanon Michel Issa (2R), speaks during a meeting with Lebanon's Ambassador to the US Nada Hamadeh Moawad (out of frame) and Israeli Ambassador to the US Yechiel Leiter (out of frame) at the State Department in Washington, DC, on April 14, 2026. (AFP)

There are few precedents for the direct talks between Lebanese and Israeli officials that began in Washington on Tuesday.

- 1949, Fragile armistice -

The first Arab-Israeli war began on May 15, 1948, the day after the declaration of the establishment of the State of Israel.

Five countries -- Egypt, Syria, Jordan, Lebanon and Iraq -- had rejected a UN plan adopted in November 1947 to partition Palestine into Jewish and Arab states and went to war against the new state.

In 1949, Israel and neighboring countries signed armistice agreements, but they collapsed with the start of the 1967 Arab-Israeli War.

- 1983, Unimplemented agreement -

Israel invaded Lebanon on June 6, 1982, in an operation it dubbed "Peace for Galilee" that was initially aimed at expelling Palestinian fighters, but which resulted in a nearly 18-year Israeli occupation.

On May 17, 1983, Lebanon and Israel signed an agreement on the withdrawal of Israeli forces from Lebanon after four-and-a-half months of direct talks with US participation.

The deal was scrapped less than a year later, in March 1984, under pressure from Syria and its allies in Lebanon.

- 1991-93, Washington talks -

A series of bilateral negotiations between Israel and Syria, Lebanon, and a joint Jordanian-Palestinian delegation was launched in late 1991, following the Madrid conference on Middle East peace.

Ten rounds of bilateral talks were held in Washington over 20 months until 1993, but failed to produce results.

- 2022, Maritime border deal -

After years of US mediation, Lebanon and Israel reached an agreement on October 27, 2022, which demarcated their maritime border and set the terms for sharing offshore gas resources in the eastern Mediterranean.

There was no direct contact between the two sides, with the deal formalized through separate exchanges of letters with the United States.

- 2024, Fragile ceasefire -

A November 2024 ceasefire sought to end more than a year of fresh hostilities between Israel and Hezbollah, but Israeli forces kept up strikes in Lebanon, saying they aimed to prevent Hezbollah from rebuilding its capabilities.

In December 2025, civilian officials for the first time joined Lebanese and Israeli military representatives in ceasefire-monitoring meetings in southern Lebanon, led by the US and also involving France and the United Nations peacekeeping force.

The talks marked the first direct discussions between the two sides in decades.


What Does a ‘Blockade of the Blockade’ in the Strait of Hormuz Mean?

Ships and a boat in the Strait of Hormuz on April 12, 2026 (Reuters)
Ships and a boat in the Strait of Hormuz on April 12, 2026 (Reuters)
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What Does a ‘Blockade of the Blockade’ in the Strait of Hormuz Mean?

Ships and a boat in the Strait of Hormuz on April 12, 2026 (Reuters)
Ships and a boat in the Strait of Hormuz on April 12, 2026 (Reuters)

When Iran moved to close the Strait of Hormuz, it did not physically seal the waterway — for example, by fully mining it. Instead, it barred ships and oil tankers belonging to Gulf littoral states, as well as vessels from countries it considers adversaries, chiefly the United States and Israel, from transiting the strait.

At the same time, Tehran allowed its own tankers to pass, maintaining exports of about 1.5 million barrels per day to global markets.

In effect, Iran imposed a selective blockade on the Strait of Hormuz, closing it to much of the world while keeping it open for its own trade.

By contrast, US President Donald Trump’s proposal to impose a naval blockade on the strait and all Iranian ports would amount to a “blockade of the blockade.” Such a move would deny Iran access to the waterway altogether, halting both its oil and non-oil exports and dealing a severe blow to its economy.

Iran’s Gains and Losses

Oil prices surged after traffic through the strait was disrupted, rising from about $75–$80 a barrel before the February conflict to roughly $120–$126 at peak wartime levels.

With exports of around 1.5 million barrels per day, Iran is estimated to have earned an additional $60 million a day from higher prices. However, because about 90 percent of its crude is sold to China at discounted rates, the net additional gain is likely closer to $45 million a day.

These figures reflect incremental revenue. At an assumed average price of $100 a barrel, Iran’s total oil income would reach roughly $150 million a day, or about $4.5 billion a month, revenues that would be cut off under a full naval blockade.

Such a “blockade of the blockade” would likely push oil prices even higher. But its impact would extend beyond Iran. China, which buys the bulk of Iranian crude, would be among the most affected.

According to Pakistani diplomatic sources, Beijing played a key role in persuading Tehran at the last minute to accept a two-week truce announced on April 7 by Donald Trump. Some analysts believe that if China’s energy supplies are threatened, it could again press Iran to make concessions in talks with Washington aimed at ending the conflict.

Rerouting Shipping Traffic

Iran’s restrictions did more than limit access; they reshaped how ships moved through the strait.

Rather than formally altering internationally recognized shipping lanes, Iran imposed operational controls that effectively redirected maritime traffic. Vessels permitted to transit were steered toward routes closer to Iran’s coastline, particularly between Qeshm and Larak islands, instead of the traditional channels running between Abu Musa and the Greater and Lesser Tunb islands.

This shift created a de facto controlled corridor near Iranian shores without any formal declaration of new navigation routes.

In many cases, passage became contingent on prior coordination with Iranian authorities, permits, or even transit fees, marking a sharp departure from the previously unrestricted flow of traffic.

Iran has allowed “friendly” or neutral vessels to pass under certain conditions, while blocking those it deems hostile. It has also deployed drones, naval mines and fast attack craft to monitor and, when necessary, intercept ships that fail to comply.

The risks have forced many shipping companies to reroute vessels around the Cape of Good Hope or adopt longer, more secure paths, including routes closer to Iranian-controlled waters.

Before the conflict, roughly 130 to 150 ships transited the Strait of Hormuz each day. During the crisis, that number dropped sharply to about five vessels, or fewer, a day.