Exclusive - What Next for Syria after Soleimani’s Killing?

Qassem Soleimani, left, with Syrian regime leader Bashar Assad, center, and Iranian President Hassan Rouhani. (AFP)
Qassem Soleimani, left, with Syrian regime leader Bashar Assad, center, and Iranian President Hassan Rouhani. (AFP)
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Exclusive - What Next for Syria after Soleimani’s Killing?

Qassem Soleimani, left, with Syrian regime leader Bashar Assad, center, and Iranian President Hassan Rouhani. (AFP)
Qassem Soleimani, left, with Syrian regime leader Bashar Assad, center, and Iranian President Hassan Rouhani. (AFP)

The assassination of Iran’s Quds Force commander Qassem Soleimani will leave an impact in Syria, where four armies are involved in the country’s nine-year conflict. Syria has a special personal and geopolitical interest for Iran where Soleimani personally oversaw the expansion of Tehran’s influence over the past two decades, most significantly with the eruption of its conflict in 2011.

Iran views Syria as the land link between Iraq and Lebanon. It also represents a second front against Israel after Lebanon. It also borders Jordan and Turkey and provides vital access to the Mediterranean under Russian cover.

Iran exerts its influence in Syria through its various organizations and militias. Four other militaries are present there: The American forces leading the anti-ISIS coalition. They are mainly deployed east of the Euphrates River near Arab groups recruited by Tehran and deployed at the Alboukamal base in the Deir Ezzour countryside. The other military is the Turkish one positioned in northern Syria. Israel’s shadow looms over Syria through its various strikes against Damascus and perceived Iranian and Hezbollah threats.

The most significant military presence is Russia’s. It has set up three long-term military bases in Latakia, Tartus and al-Qamishli and deployed various advanced missile systems.

Revenge

Iran has been mulling avenging Soleimani since his assassination in a US air strike near Baghdad on Friday. It has vowed revenge against American interests and Syria may be the arena where this plays out. However, it must take into consideration military factors and various players on the ground:

- East of the Euphrates: This seems like the ideal location because of the American troop deployment near Iranian groups. Both sides have since taken precautions in anticipation of any attack. Alboukamal may be another option. It is where Soleimani sought to open a land route that starts in Tehran, passes through Baghdad and Damascus and ends in Beirut. This route was severed when the Americans took over the al-Tanf base and cut the main highway between the Iraqi and Syrian capitals. Alboukamal seems more vulnerable to Iran’s revenge now that the “architect of the alternate route” has been taken out of the picture.

- Aleppo: Soleimani had visited the neighborhoods of eastern Aleppo several times after the regime recaptured the area in December. He also visited western Aleppo leading to Idlib. Pro-Iran groups did not get involved in recent battles in southeastern Idlib, vast areas of which were seized by Damascus. There is a belief that Damascus may seek to speed up efforts to capture the entire province as the world continues to reel from the fallout of Soleimani’s killing.

This move, however, depends on Wednesday’s summit between Russian President Vladimir Putin and his Turkish counterpart Recep Tayyip Erdogan. The two leaders will discuss a possible truce in Idlib. Tehran may hesitate in pursuing its revenge in Idlib because it may affect understandings it had reached with Russia and Turkey during their Astana talks.

- Golan Heights: Southern Syria came into focus after Iran and Hezbollah became involved in the Syrian conflict in 2013 where they worked to set up cells and groupings. This presence came under pressure after Russia entered the fray in 2015. Israel began to carry out strikes against Iranian and Hezbollah targets with implicit Russian coordination. Moscow had also sponsored an agreement that called for the withdrawal of all non-Syrian forces, meaning Iranian ones, from the south and Golan in exchange for the return of regime forces to that area.

Soleimani is believed to have encouraged these groups to use to the Golan Heights to target Israel. The last such attack took place in November when Tel Aviv assassinated prominent Islamic Jihad officials in Gaza and Damascus. Tehran also tested drones that flew from central Syria to its south. The Israeli retaliation targeted Iranian and Syrian positions near Damascus and beyond.

Shadow state

In mid-2015, Soleimani visited Moscow where played a significant role in persuading Putin in directly intervening militarily in Syria to support regime forces, who at the time were only in control of ten percent of the country. Russia and Iran then entered into an uneasy “marriage of interests” where Russia deploys its air power and Iran its non-Iranian militias, overseen by its Revolutionary Guards Corps, to fight for the regime.

This balance met Putin’s demand to avoid a “second Afghanistan” in Syria and led to victories at a minimal human and material cost. It also met Iran’s ambitions in saving its strategic ally in Damascus and allowed it to infiltrate Syria’s social fabric. Russia and Iran reaped from the regime significant agreements and economic interests. Moscow signed 49-year deals to set up military bases. It also reaped oil, gas and phosphate contracts. Tehran and Damascus also signed economic, trade and military deals.

The difference between Russia and Iran was vast, however. Moscow focused on state institutions, such as the military and government. Iran, meanwhile, focused on setting up a “shadow state” through “social” and “charitable” organizations. Russia was present in the light and cities, while Iran spread in the shadows and countryside.

Soleimani was the architect of this shadow state in Syria and his absence will be felt. His assassination will bring Iran’s role in Syria into the spotlight related to whether it can seek its revenge there or highlight its presence in the war-torn country. Soleimani’s absence “liberates” decision-makers in Damascus from the past ten years. The same applies to Putin should he wish to limit Tehran’s role. The assassination weakens the role of Iran’s cells and provides an opportunity to boost state institutions.

Soleimani’s elimination may pave the way for Russia to restore Syrian-Iranian relations to the way they were away from the personal aspects. It may also pave the way for allowing Arab and western countries to rebuild Syria, support the return of refugees and push non-state forces and militias to withdraw.



How Much Damage Have Israeli Strikes Caused to Iran’s Nuclear Program?

A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)
A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)
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How Much Damage Have Israeli Strikes Caused to Iran’s Nuclear Program?

A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)
A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)

Israel has carried out wide-ranging military strikes on Iran, hitting sites including some of its most important nuclear facilities.

Below is a summary of what is known about the damage inflicted on Iran's nuclear program, incorporating data from the last quarterly report by the UN nuclear watchdog on May 31.

OVERVIEW

Iran is enriching uranium to up to 60% purity. This could easily be refined further to the roughly 90% which is weapons grade.

The International Atomic Energy Agency, which inspects Iran's nuclear sites including its enrichment plants, says that is of "serious concern" because no other country has enriched to that level without producing nuclear weapons. Western powers say there is no civil justification for enrichment to that level.

Iran denies seeking nuclear weapons. It points to its right to nuclear technology for peaceful purposes, including enrichment, as a party to the nuclear Non-Proliferation Treaty.

Israel, which is not a party to the NPT, is the only country in the Middle East widely believed to have nuclear weapons. Israel does not deny or confirm that.

HEART OF THE PROGRAM: URANIUM ENRICHMENT

Iran had three operating uranium enrichment plants when Israel began its attacks:

* The Fuel Enrichment Plant (FEP) at Natanz (power supply hit)

A vast underground facility designed to house 50,0000 centrifuges, the machines that enrich uranium.

There has long been speculation among military experts about whether Israeli airstrikes could destroy the facility given that it is several floors underground.

There are about 17,000 centrifuges installed there, of which around 13,500 were operating at last count, enriching uranium to up to 5%.

Electricity infrastructure at Natanz was destroyed, IAEA chief Rafael Grossi told the UN Security Council on Friday, specifically an electrical sub-station, the main electric power supply building, emergency power supply and back-up generators.

While there was no indication of a physical attack on the underground hall containing the FEP, "the loss of power ... may have damaged the centrifuges there", he said.

Grossi has cited unspecified "information available to the IAEA". While Iran has provided the agency with some information, the IAEA generally makes extensive use of satellite imagery.

* The Pilot Fuel Enrichment Plant (PFEP) at Natanz (destroyed)

The smallest and, being above-ground, the softest target of the three enrichment plants. Long a research and development center, it used fewer centrifuges than the other plants, often connected in smaller clusters of machines known as cascades.

It did, however, have two interconnected, full-size cascades of up to 164 advanced centrifuges each, enriching uranium to up to 60%. Apart from that, there were only up to 201 centrifuges operating at the PFEP enriching to up to 2%.

Most of the research and development work attributed to the PFEP had recently been moved underground to the FEP, where more than 1,000 of its advanced centrifuges were enriching to up to 5%.

The PFEP was destroyed in the Israeli attack, Grossi said.

* The Fordo Fuel Enrichment Plant (no visible damage)

Iran's most deeply buried enrichment site, dug into a mountain, suffered no visible damage, Grossi reiterated on Monday.

While it has only about 2,000 centrifuges in operation, it produces the vast majority of Iran's uranium enriched to up to 60%, using roughly the same number of centrifuges as the PFEP did, because it feeds uranium enriched to up to 20% into those cascades compared to 5% at the PFEP.

Fordo therefore produced 166.6 kg of uranium enriched to up to 60% in the most recent quarter. According to an IAEA yardstick, that is enough in principle, if enriched further, for just under four nuclear weapons, compared to the PFEP's 19.2 kg, less than half a bomb's worth.

OTHER FACILITIES

Israeli strikes damaged four buildings at the nuclear complex at Isfahan, the IAEA has said, including the Uranium Conversion Facility (UCF) and facilities where work on uranium metal was conducted.

While it has other uses, mastering uranium metal technology is an important step in making the core of a nuclear weapon. If Iran were to try to make a nuclear weapon, it would need to take weapons-grade uranium and turn it into uranium metal.

Uranium conversion is the process by which "yellowcake" uranium is turned into uranium hexafluoride, the feedstock for centrifuges, so that it can be enriched. If the UCF is out of use, Iran will eventually run out of uranium to enrich unless it finds an outside source of uranium hexafluoride.

SCIENTISTS

At least 14 Iranian nuclear scientists have been killed in Israeli attacks since Friday, including in car bombs, two sources said on Sunday.

Israel's armed forces named nine of them on Saturday, saying they "played a central part of the progress toward nuclear weapons" and that "their elimination represents a significant blow to the Iranian regime's ability to acquire weapons of mass destruction". That assertion could not immediately be verified.

Western powers have often said Iran's nuclear advances provide it with an "irreversible knowledge gain", suggesting that while losing experts or facilities may slow progress, the advances are permanent.

URANIUM STOCKPILE

Iran has a large stock of uranium enriched to different levels.

As of May 17, Iran was estimated to have enough uranium enriched to up to 60% for it to make nine nuclear weapons, according to an IAEA yardstick.

At lower enrichment levels it has enough for more bombs, though it would take more effort: enough enriched to up to 20% for two more, and enough enriched to up to 5% for 11 more.

Much of Iran's most highly enriched uranium stockpile is stored at Isfahan under IAEA seal, officials have said. The IAEA does not report where it is stored, nor has it said whether it was affected by the strikes.

OPEN QUESTIONS

* How will Iran respond?

Iranian Deputy Foreign Minister Kazem Gharibabadi told state TV on Saturday Iran would take measures to protect nuclear materials and equipment that would not be notified to the IAEA and it would no longer cooperate with the IAEA as before.

Lawmakers are also preparing a bill that could prompt Iran to pull out of the NPT, following in the footsteps of North Korea, which announced its withdrawal in 2003 and went on to test nuclear weapons.

The IAEA does not know how many centrifuges Iran has outside its enrichment plants. Any further reduction in cooperation with the IAEA could increase speculation that it will or has set up a secret enrichment plant using some of that supply.

Existing centrifuge cascades can also be reconfigured to enrich to a different purity level within a week, officials have said.

* What is the status of the uranium stock?

If Iran can no longer convert, its existing stock of uranium hexafluoride and enriched uranium becomes even more important.

* How bad is the damage?

The IAEA has not yet been able to carry out inspections to assess the damage there in detail.

* Will there be more attacks?

Soon after the attacks started on Friday, US President Donald Trump urged Iran to make a deal with the United States to impose fresh restrictions on its nuclear program "before there is nothing left". Talks scheduled for June 15 were called off.