War on Gaza Strains Relations between Iran, Syria

Rubble is removed from the site of the Iranian consulate in Damascus after it was destroyed by an Israeli strike in April. (Asharq Al-Awsat)
Rubble is removed from the site of the Iranian consulate in Damascus after it was destroyed by an Israeli strike in April. (Asharq Al-Awsat)
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War on Gaza Strains Relations between Iran, Syria

Rubble is removed from the site of the Iranian consulate in Damascus after it was destroyed by an Israeli strike in April. (Asharq Al-Awsat)
Rubble is removed from the site of the Iranian consulate in Damascus after it was destroyed by an Israeli strike in April. (Asharq Al-Awsat)

It appears that the war on Gaza has impacted Iran’s military deployment in Syria. Local sources said Tehran has started to put in place plans for the relocation of Iranian Revolutionary Guards (IRGC) headquarters from the Damascus countryside to regions close to the border with Lebanon after the killing of several of its prominent members in Israeli strikes in recent months.

Syria has notably taken “neutral” and even “cold” stances towards Iran in wake of these developments, amid Iranian suspicions that Syrian security agencies could have leaked information about its officers who were later targeted by Israel.

Iran also appears to be alarmed by Damascus’ openness to overtures to return to the Arab fold, which could be interpreted as distancing itself from Tehran.

Asharq Al-Awsat was in Syria where it witnessed how the deployment of gunmen at the Sayyeda Zainab region has become limited to Lebanese Hezbollah members when Iran’s presence used to be felt in the past. The area is a destination for Shiite visitors from Iran, Iraq, Lebanon, Pakistan and Afghanistan.

Local sources in the town of Hujeirah north of Sayyeda Zainab told Asharq Al-Awsat: “This is the headquarters of Iranian religious and military leaders. Ever since Israel intensified its strikes on the region, we have started to see very little of them. We have hardly seen them as of late. They have disappeared.”

Israel struck in April the Iranian consulate in Damascus, leaving seven people dead, including Mohammad Reza Zahedi, commander of the IRGC’s Quds Force in Syria and Lebanon. The development was a blow to Iran who after a decade of conflict in Syria, had sent tens of thousands of Iraqi, Afghan and Pakistani militia members to back the Damascus regime.

Fears and evacuation plans

A source close to a high-ranking Iranian “adviser” in Syria spoke of the deep fear over his life the latter is experiencing in wake of the repeated Israeli strikes. He quoted the adviser as saying that he was being forced to “sleep in the open over fears for his life”.

Sources from pro-Iran militias in the Damascus countryside said Tehran has come up with plans to evacuate IRGC members from Syria given “the mounting Israeli pressure.” They are expected to leave through Damascus International Airport and across the border with Iraq.

The IRGC had already evacuated its known headquarters in the Damascus countryside and relocated to areas to close to the Lebanese border, said local sources that observed their movement.

Israel had intensified its strikes against Iranian targets in Syria since the eruption of the war on Gaza on October 7.

Sayyeda Zainab

Sayyed Zainab is viewed as the main headquarters of the Iranian forces in Syria. Now, it has become devoid of Iranians or militias loyal to them. The forces quit the area in wake of an Israeli strike that killed Reza Mousavi, a top commander, in December.

Asharq Al-Awsat toured the area and noted that gunmen deployed in the area are limited to Hezbollah members.

In spite of the situation on the ground, Iranian Ambassador to Syria Hossein Akbari stressed that his country will not withdraw militarily from the country.

Commenting to Syria’s Al-Watan newspaper on reports that the Iranian advisers were leaving, he said: “We are present in Syria, and we will never withdraw from it.”

Iran was Syria’s top backer from the early days of the Syrian conflict that broke out in 2011. It has supported it on the political, military and economic levels. Around 3,000 IRGC members are deployed in the country, according to the Syrian Observatory for Human Rights.

Influence

Hezbollah is the most powerful Shiite militia in Syria and it comes only second to the IRGC in terms of influence, a source close to the party told Asharq Al-Awsat.

The party is focusing on managing communication with regular Syrians, it added. The party leaders are “very keen on avoiding provoking Syria’s Sunni majority.” They have forged good relations with society figures in areas where they are deployed, such as al-Qusayr in Homs and al-Qalamoun in the western Damascus countryside.

In many instances, they have protected locals against the practices of the Syrian security forces, said the source.

For the Syrian authorities, the discipline of Hezbollah members and leaderships is seen in a positive light, contrasted with the Iraqi militias that are undisciplined, said another source.

On relations between Damascus and Hezbollah, a source close to the Syrian authorities told Asharq Al-Awsat that Hezbollah leaderships “always intervene to ease tensions that may arise with Iranian or Iraqi militias.”

“We enjoy a long history of cooperation with them. They understand our way of thinking,” he added.

Moreover, he said Hezbollah Secretary General Hassan Nasrallah has long used his personal influence with Syrian President Bashar al-Assad to “resolve several disputes”. He recently played a role in easing tensions between Syria and Iran, leading him to defend during a recent televised address Syria’s decision to not become involved in the war on Gaza.

Syria distances itself

Contrary to Iran’s allies in Lebanon, Iraq and Yemen, the authorities in Syria chose to remain on the sidelines in the war. For example, the Israeli-occupied Golan Heights has seen little unrest.

Sources in Damascus said: “The Iranians fail to understand Syria’s neutral position on Gaza and its refusal to open the Golan front.”

The Iranians believe their country “has paid dearly in defending the Syrian regime, which in turn, is luring dialogue offers from the West that are seen as a reward for its decision to distance itself” from the war. “This is something the Iranians will not accept,” they added.

They explained: “Some Syrian officials believe that any Iranian regional gain will inevitably come at Damascus’ expense as evidenced by how terrified the regime was at the beginning of the war on Gaza of Iran and the United States possibly striking a deal.”

As tensions between Damascus and Tehran continue, Iranian advisers in Syria have said they no longer hold the same respect among the people.

“We have no value here in Syria. No one cares about us. Back home, I was in charge of an entire province and the people were grateful to me. Here, no one even respects us,” a source quoted an Iranian general in Syria as saying.

Jaramana: The Iraqi ‘capital’

The situation is viewed differently by the leaders of various Iraqi militias. They believe they know the Syrians better than the Iranians and Lebanese militants.

“Hezbollah officials believe we must cater to the Syrian officials. The Iranians share the same view, but our experience has shown that the Syrians may openly adopt a hard line, while in fact they are actually much weaker than they appear,” a source quoted a medium-ranked Iraqi militia member as saying.

Damascus officials have criticized Iraqis for their excessive involvement with the Syrians, most notably in Jaramana city in the eastern Damascus countryside. The city has become known as the Iraqi “capital” given the heavy presence of the militias there.

The source said the fighters spend their time at the nightclubs in the city, “which poses high security risks.” He also spoke of doubts harbored by the Iranians that the militias may have leaked information about the Iranians and Hezbollah in Syria.

Hezbollah has been informed of several leaks that can be traced back to its own members.

Relations turn cold

Syrian security agencies have also been suspected of leaking sensitive information about the Iranians to Israel that led to the killings of Iranian officials, “who died in defense of the Syrian regime.”

President Assad has also referred to retirement several security and military officials who were in charge when Iran was deepening its influence during the war and so understand all it has offered the country, further straining relations between Tehran and Damascus.

Sources following the course of Syrian-Iranian relations told Asharq Al-Awsat that the developments took place as Iran is secretly alarmed by the Arab openness towards Damascus and the regime turning towards the Arab fold.

The shift is seen as a response by Damascus to agreements reached between Iran and the US that did not sit well with the regime. One such deal was the 2022 agreement reached between Lebanon and Israel over their joint maritime border, said the sources.

The tensions continue. Iran has been exerting more pressure on the Damascus government to pay debts owed to it, in a bid by Tehran to impose more restrictions and extract more commitments from it so as to limit is ability to maneuver in the region.

In August 2023, a classified Iranian government document was leaked to the media. It spoke of how Tehran spent 50 billion dollars on the war in Syria in ten years. The sum is viewed as a debt it wants Damascus to pay in the form of Iranian investments in phosphates, oil and other resources in Syria.

The Syrians at the time approached the Iranians for a denial of the document, but they refused, saying they do not comment on media claims. This was interpreted as an Iranian move to lead Syria and Arab countries to believe that Damascus was shackled by Iranian debts, informed sourced told Asharq Al-Awsat.

The sources following the Syrian-Iranian ties quoted a Syrian official as saying: “We went along with the Iranians, but we realized that they have not fulfilled several of their commitments. We are now trying to get out of this situation. This is our chance and we must explore it for the sake of the future of our country.”

Gaza rift

The war on Gaza has revealed a rift between Tehran and Damascus. The informed sources said Damascus sensed there was a possibility to normalize relations with the West because it refused to become involved in the war.

Signs have emerged that Syrian-Iranian relations have grown cold. No Iranian officials were invited to the Quds Day commemoration that was held south of Damascus in April. Posters of the Iranian president, Supreme Leader Ali Khamenei and Hezbollah’s Nasrallah were noticeably absent at the event in contrast to previous years.

Meanwhile, a fuel shortage in Syria appears to have deepened, another sign of strains with Iran, which is the country’s main supplier.

And on the advent of the holy fasting month of Ramadan earlier this year, Assad exchanged cables of congratulations with several Arab leaders. His exchange with Iranian officials was notably not covered by the media. Congratulations on the Eid al-Fitr holiday with Iran were also left out of the coverage.



Iran Eyes Limited US Deal to Relieve Economic Strain and Buy Time

 A drone view shows vessels at the Strait of Hormuz, as seen from Musandam, Oman, June 1, 2026. (Reuters)
A drone view shows vessels at the Strait of Hormuz, as seen from Musandam, Oman, June 1, 2026. (Reuters)
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Iran Eyes Limited US Deal to Relieve Economic Strain and Buy Time

 A drone view shows vessels at the Strait of Hormuz, as seen from Musandam, Oman, June 1, 2026. (Reuters)
A drone view shows vessels at the Strait of Hormuz, as seen from Musandam, Oman, June 1, 2026. (Reuters)

Iran is pushing for a limited interim agreement with the United States in a bid to ease mounting economic pressure and stabilize the situation at home, while avoiding major concessions on its nuclear program, according to sources and analysts.

The approach reflects a familiar playbook for the Iranian regime: absorb pressure, avoid irreversible compromises and keep negotiations alive without shifting core positions, three Iranian sources close to decision-makers said, according to Reuters.

But the latest push is also driven by more immediate concerns. Officials see a narrow deal as a way to buy time, unlock financial relief and contain rising domestic risks over a deteriorating economy without addressing the most contentious issues.

The diplomatic maneuvering follows weeks of escalation after US-Israeli strikes in late February spiraled into a broader regional conflict. Iranian attacks across the Gulf heightened fears over the security of the Strait of Hormuz, a chokepoint for roughly a fifth of global oil and liquefied natural gas supplies.

Three months on, and ‌despite a fragile ‌ceasefire in early April, the conflict has hardened into a stalemate. A US blockade on ‌Iranian ⁠ports and Tehran's ⁠grip on the Strait have sustained mutual pressure, driving up economic costs while leaving the risk of renewed fighting unresolved.

Against that backdrop, both sides have lowered expectations of a comprehensive settlement. Instead, they are exploring what officials describe as a temporary memorandum — effectively an interim deal — aimed at preventing a return to open conflict, while deferring core disputes over Iran's nuclear activities.

TEHRAN SEEKS BREATHING SPACE

For Tehran, such an arrangement is primarily a means of converting military and economic pressure into liquidity, breathing space and de-escalation, without curbing sensitive nuclear work.

Iran is seeking an end to hostilities across all fronts, including Lebanon, access to billions of dollars in oil revenues, waivers on crude ⁠exports, a lifting of the US port blockade and continued leverage over the strait, ‌while postponing decisions on the most contentious issues.

The framework would center on temporary ‌easing and phased access through the waterway, leaving unresolved questions over enrichment capacity and Tehran's stockpile of highly enriched uranium, including material enriched to ‌60%.

Alex Vatanka, a senior fellow at the Middle East Institute in Washington, said Tehran's calculation is shaped less by battlefield ‌risks than by economic pressure and uncertainty.

"Iranian leaders understand that time is not necessarily on their side... their calculation appears to be that dialogue, even limited dialogue, is preferable to entering an open-ended period of economic attrition and uncertainty that could gradually weaken its ability to govern at home and project influence abroad."

TEHRAN FEARS PROTEST REVIVAL

Much rests on the success of negotiations. President Donald Trump is under pressure to reopen ‌the Strait of Hormuz and curb US fuel prices, while fending off criticism from Iran hawks in his own Republican party over any concessions to Tehran.

Iran's leadership also ⁠faces domestic pressures. Years of sanctions, ⁠economic mismanagement and conflict have fueled inflation, currency depreciation and a sharp decline in living standards.

Short-term financial inflows are therefore crucial to Tehran's interest in a preliminary deal, the sources said, as they could keep the economy running, ease immediate pressures and stave off a resurgence of unrest.

In January, Iran's clerical establishment and the Revolutionary Guards killed thousands while suppressing nationwide protests sparked by economic grievances.

Hamidreza Azizi, a visiting fellow at the German Institute for International and Security Affairs (SWP) in Berlin, said a memorandum could also address mounting concerns about the long-term resilience of the system.

"By ending the conflict, reducing economic strain, removing US military pressure around Iran, and creating space for reconstruction, an MoU could help prevent a gradual erosion of state capacity and governance," Azizi said.

STRAIT REMAINS IRAN'S LEVERAGE

The Strait of Hormuz remains central to Iran's leverage. Within the clerical establishment, it is increasingly seen less as a bargaining chip than as a durable strategic asset.

Any arrangement that restores shipping while preserving that leverage would leave Tehran's influence over the chokepoint intact, the sources said, allowing flows to resume while stability remains tied to political negotiation.

One source said a limited deal would effectively restore prewar conditions without forcing Iran to yield to Washington’s demands, adding: "With the start of the war, Trump gave Iran the gift of control over the Strait."


In Finland, Radioactive Spent Nuclear Fuel Soon to Be Buried Underground

Picture taken on May 18, 2026 shows the "hot cell" fuel handling chamber at the encapsulation plant of nuclear waste management company Posiva at the site of what is expected to be the world's first permanent repository for radioactive spent nuclear fuel at the Onkalo nuclear repository in Eurajoki, southwestern Finland. (AFP)
Picture taken on May 18, 2026 shows the "hot cell" fuel handling chamber at the encapsulation plant of nuclear waste management company Posiva at the site of what is expected to be the world's first permanent repository for radioactive spent nuclear fuel at the Onkalo nuclear repository in Eurajoki, southwestern Finland. (AFP)
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In Finland, Radioactive Spent Nuclear Fuel Soon to Be Buried Underground

Picture taken on May 18, 2026 shows the "hot cell" fuel handling chamber at the encapsulation plant of nuclear waste management company Posiva at the site of what is expected to be the world's first permanent repository for radioactive spent nuclear fuel at the Onkalo nuclear repository in Eurajoki, southwestern Finland. (AFP)
Picture taken on May 18, 2026 shows the "hot cell" fuel handling chamber at the encapsulation plant of nuclear waste management company Posiva at the site of what is expected to be the world's first permanent repository for radioactive spent nuclear fuel at the Onkalo nuclear repository in Eurajoki, southwestern Finland. (AFP)

The elevator display reads "433", the number of meters below ground. The doors slide open, revealing the entrance to what is expected to be the world's first permanent repository for radioactive spent nuclear fuel.

Blasted into 1.9 billion-year-old stable bedrock in Eurajoki, southwest Finland, the geological repository for spent nuclear waste -- dubbed Onkalo which means "cave" in Finnish -- is nearly ready to start operations.

Countries have been wrestling with what to do with dangerous nuclear by-products since the first plants were built in the 1950s. Currently, most of it is in temporary storage.

Final repositories are being built in other countries, including neighboring Sweden and France, but Finland is expected to be first to open an underground storage solution.

The Finnish Radiation and Nuclear Safety Authority (STUK) is due to give approval in its final assessment in June, after which an operating license can be granted.

"We hope we can start the operation either at the end of this year or most probably at the beginning of next year," said Philippe Bordarier, chief executive of nuclear operator Teollisuuden Voima Oyj (TVO).

His voice echoed in the damp tunnel where the spent nuclear fuel will be buried in holes drilled into the bedrock, where it will remain harmfully radioactive for thousands of years.

The waste currently cooled in water pools at an interim storage site, at the nearby Olkiluoto power plant next to the Baltic Sea, will be first to be deposited, Bordarier said.

With space for 6,500 tons of uranium, Onkalo is aimed at providing permanent storage for spent fuel from Finland's five nuclear reactors -- three of them located in Olkiluoto.

Nuclear waste management company Posiva began building the site in 2004, with the cost now estimated at one billion euros ($1.16 billion).

- 'Forever'-

Spent fuel is planned to be deposited in Onkalo's massive network of tunnels for 100 years, but operations may be extended if new nuclear reactors are built.

Subsequently, the vault will be sealed to provide safe storage for at least 100,000 years.

"Basically, it needs to be safe forever," noted Lauri Parviainen, a Posiva chemist who showed reporters around the facilities.

The fuel will be highly radioactive for "tens of thousands of years", he said.

After 100,000 years, they will be "about the same level as the uranium ore of which the fuel is made."

Above ground, the spent nuclear fuel will be encapsulated in highly corrosion-resistant copper canisters.

The canisters will be lowered into holes drilled in the tunnels, before the holes are filled with bentonite clay to seal them, Parviainen explained.

"So if the bentonite stays in place, we are safe," he said.

Once each 300-meter-long disposal tunnel is filled, it will be sealed with a steel-reinforced concrete plug.

- Long-term risks -

Jarkko Kyllonen, an expert on nuclear safety at Finland's nuclear regulator STUK, has assessed risk scenarios for the Onkalo project stretching up to a million years into the future.

Considering the "hazard potential of the waste, the first 10,000 years are very important for keeping the capsules intact," he told AFP.

The main long-term risks are corrosion of the copper canisters or earthquakes during future ice ages, which could potentially damage the capsules and cause radioactive fuel to leak, Kyllonen said.

But the results of various risk assessments conducted over the years have been "positive".

While France's plans for a similar underground nuclear tomb have met with strong opposition, Onkalo has received broader backing in Finland.

There was some opposition locally when the plans were first introduced in the 1970s, but "people have gotten used to it, and they trust the assessments made by STUK", Matti Kojo, social sciences professor at Lut University, told AFP.

"At the moment, support for nuclear power is at a historically high level in Finland," he noted.

The Finnish Association for Nature Conservation remains critical of the project, however, insisting that nuclear waste poses a long-term, serious risk.

"No one can guarantee the safety of Onkalo for thousands of years," director Tapani Veistola told AFP in an e-mail.

- Finland's nuclear push -

Under Finnish law, nuclear waste produced in Finland has to be deposited in the country, Climate and Environment Minister Sari Multala told AFP.

"Before the legal change in 1994, the spent nuclear fuel was exported to, for example, Russia," she said.

Increasing nuclear power in Finland has been a priority for the right-wing government, and the country is considering building so-called small modular reactors (SMRs).

How the spent nuclear fuel from future SMRs would be managed "has not been decided yet," Multala said. An assessment should be completed by March next year, she added.


Iran's Strongest Card in Nuclear Talks: Its Highly Enriched Uranium

Centrifuges at the Fordow nuclear facility before the June 2025 attacks (Reuters)
Centrifuges at the Fordow nuclear facility before the June 2025 attacks (Reuters)
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Iran's Strongest Card in Nuclear Talks: Its Highly Enriched Uranium

Centrifuges at the Fordow nuclear facility before the June 2025 attacks (Reuters)
Centrifuges at the Fordow nuclear facility before the June 2025 attacks (Reuters)

Iran and the United States are in discussions to extend ‌their ceasefire so as to start negotiations on issues including Tehran's nuclear program, where Washington insists Iran must not be able to make a nuclear weapon.

While much of Iran's uranium enrichment infrastructure was destroyed or badly damaged when Israel and the US bombed it in June, a large part of the highly enriched uranium it amassed is thought to have survived. That is the biggest US concern ahead of nuclear talks.

On Friday Trump said in a social media post that Iran must agree that the enriched uranium buried underground after earlier US strikes be "unearthed" and destroyed in coordination with Iran and the UN nuclear watchdog.

WHAT IS HIGHLY ENRICHED URANIUM?

One of two fissile materials, along with plutonium, with which one can make the core of a nuclear bomb. While plutonium is usually extracted from the spent fuel of a nuclear reactor, requiring large and highly visible infrastructure, uranium can be enriched using centrifuges that have a much smaller footprint. Two of Iran's three enrichment sites that are known to have been operating when Israel and the ‌US attacked in ‌June were underground. The above-ground one was clearly destroyed.

Uranium is highly enriched when it ‌has ⁠reached 20% purity, and ⁠weapons-grade as of around 90%.

Modern reactors generally use fuel enriched to up to 5%, but some use fuel enriched to higher levels. The ones that power US nuclear submarines reportedly use fuel enriched beyond 90%.

HOW MUCH DOES IRAN HAVE?

Iran has not informed the UN nuclear watchdog of the fate of its enriched uranium since the June attacks or let its inspectors return to the sites where it was stored.

The International Atomic Energy Agency estimates Iran had these amounts when the first Israeli bombs fell on June 13:

- 440.9 kg enriched to up to 60%

- 184.1 kg enriched to up to 20%

- 6,024.4 kg enriched to ⁠up to 5%

- 2,391.1 kg enriched to up to 2%

According to an IAEA yardstick, ‌the amount at 60% is enough, if enriched further, for 10 nuclear weapons. ‌The 20% stock would be enough for one and the 5% could produce 12. How much has survived is unclear. IAEA chief ‌Rafael Grossi has said his agency believes "a bit more than 200 kg" of the 60% stock is stored at a ‌tunnel complex in Isfahan that appears to have been largely unharmed by the June attacks. Some was also at the Natanz nuclear site, he said.

WHY THE CONCERN? US concern has been focused on the 60% material because that would be easiest and thus quickest to make a bomb with. Washington wants it gone. Iran denies seeking nuclear weapons.

As the enrichment level of uranium increases, it becomes exponentially easier to enrich ‌further. Getting from 60% to 90% is easier than getting from unenriched to 5%.

President Donald Trump pulled the United States out of a nuclear deal between Iran and ⁠major powers that kept Tehran ⁠at a far greater distance from being able to produce an atom bomb than it is at now. The US withdrawal in 2018 caused the deal to unravel, and Iran quickly expanded its atomic program.

Under that 2015 deal, Iran did not enrich beyond 3.67%.

Even at 90%, however, it takes more steps to produce the core of a bomb. When it is enriched, the uranium is in gas form. It must then be turned into metal for use in a weapon.

CAN YOU MOVE IT?

Yes. Iran moved enriched material between sites under IAEA monitoring before the June attacks.

Under the 2015 deal and a precursor to it, Iran's stocks of uranium enriched to up to 20% were diluted or turned into reactor fuel plates and shipped out of the country.

Moving nuclear material like highly enriched uranium internationally is a sensitive but relatively routine procedure.

"It requires some precaution but it can be moved," Grossi told PBS in March when asked about the 60% material.

WILL IRAN GIVE IT UP? Iran's supreme leader has issued a directive that the 60% material should not be sent abroad, two senior Iranian sources said last week.

Iranian sources say Tehran might agree to send half of it to a third country, receiving uranium enriched to 5% in return, and dilute the other half inside Iran.