Khamenei

Supreme Leader Mojtaba Khamenei has released a message for the Persian New Year saying that Iran’s unity had defeated the enemy. Khamenei’s message comes amid rumours over his health following US-Israeli strikes.

Trump calls NATO cowardly over lack of support for Iran war, says Strait of Hormuz should be protected ‘by other nations who use it’.

After a US-Israeli strike killed Iran’s Ali Khamenei, the war on Iran escalates, and the Islamic Republic faces a critical moment. Mojtaba Khamenei has been elected supreme leader, marking a rare and controversial succession. This explainer breaks down how Iran’s power structure was built after the 1979 Islamic revolution led by Ayatollah Ruhollah Khomeini, and how Ali Khamenei transformed that revolution into a complex political and security structure.

We examine how the supreme leader sits above all institutions in Iran, shaping decisions across government, the military, and the Islamic Revolutionary Guard Corps, and how this system is designed to endure beyond any single leader. As Mojtaba Khamenei takes power, questions grow over how Iran will be governed, how the IRGC will influence decision-making, and whether the system Ali Khamenei built can withstand both internal pressure and external conflict.

From Ali Khamenei to Mojtaba Khamenei, this is the story of Iran’s supreme leader, the system behind power in Iran, and what comes next.

Mojtaba Khamenei has not been seen in public since he replaced his slain father as Iran’s supreme leader.

Supreme Leader Mojtaba Khamenei has said Iran’s enemies were being “defeated” in a written message for the Persian New Year, as the US and Israel continue to pound the country with attacks.

In a statement read on Iranian television on Friday, Khamenei praised the steadfastness of the Iranian people marking Nowruz, which he said ushered in ‌the year of a “resistance economy under national unity and national security”.

“At the moment, due to the particular unity that has been created between you, our compatriots – despite all the differences in religious, intellectual, cultural and political origins – the enemy has been defeated,” he said.

Khamenei has not been seen in public since he became supreme leader, following the assassination of his father, Ayatollah Ali Khamenei, at the start of the war on February 28.

Iran’s supreme leader said that while the US and Israel believed that after one or two days of attacks, the Iranian people would overthrow the government, but this was a “gross miscalculation”.

The war was launched under “the delusion that if the pinnacle of the regime and certain influential military figures were to attain martyrdom, it would instil fear and despair in our dear people … and through this means, the dream of dominating Iran and subsequently dismembering it would be realised”, he said.

Instead, “a fracture has emerged in the enemy,” he added.

Analysts have observed that the Iranian constitution itself was drafted with the spectre of a power vacuum in mind, a “survival protocol” designed to give the system the capacity to continue even at a moment of maximum shock.

Khamenei also denied that Iran or its ‌allied forces were responsible for attacks ⁠against Turkiye and ⁠Oman.

Those were “false flag” incidents used by Iran’s enemy to “sow discord among neighbours, and it may occur in other countries as well”, he claimed.

The Turkish Ministry of National Defence last week said NATO air defences intercepted a ballistic missile launched from Iran. Two people were killed in Oman after drones came down in the Sohar province.

The supreme leader also called on Afghanistan and Pakistan to end their fighting and said he stood ready to assist.

“We consider our eastern neighbours to be very close to us”, the supreme leader said. “I appeal to our two brotherly countries, Afghanistan and Pakistan, to establish better relations with each other … and I myself am ready to take the necessary actions.”

The neighbouring countries agreed to a temporary “pause” in hostilities during the Muslim holiday of Eid al-Fitr this week, after weeks of deadly violence.

WASHINGTON — Iran’s new supreme leader, Mojtaba Khamenei, vowed retaliation Thursday against the United States and Israel and signaled that Tehran will continue to choke off the world’s most critical oil route, as the war strained global energy markets and raised new security concerns in the United States.

In his first public remarks since U.S.–Israeli strikes killed his father, former Supreme Leader Ayatollah Ali Khamenei, Mojtaba Khamenei swore revenge. The new leader, notably, did not appear in person for the televised statement. Instead, his written words were read aloud on Iranian state media.

“We will never retreat and vow to avenge the blood of our martyrs,” he said. “Our revenge will be never ending, not only for the late supreme leader, but also for the blood of all of our martyrs. … Those who killed our children will pay the price.”

The new leader expressed condolences to families who lost children in a strike on a girls school in Minab that killed more than 165 people, many of them children. He also warned that the war could expand, declaring that the continuation of the conflict “depends on the interests of the parties.”

The Associated Press, citing two sources, reported that outdated intelligence likely led to the United States carrying out the deadly missile strike on the elementary school. U.S. Central Command relied on target coordinates for the strike using outdated data provided by the Defense Intelligence Agency, according to a person familiar with the preliminary finding.

Khamenei indicated that Tehran would maintain its blockade in the Strait of Hormuz, a key choke point through which 20% of the world’s oil supply is shipped. He also said he believes in friendship with his country’s neighbors, but that attacks on U.S. military installations in the region will continue. He described maintaining pressure on the passage as a necessary part of Iran’s war strategy.

His remarks came as attacks continued to disrupt shipping and energy infrastructure across the Persian Gulf. The war sent oil up 10% Thursday as hostilities in Iran drag on.

Reports from the region said Iranian forces have intensified strikes on vessels attempting to pass through the Strait of Hormuz, leaving hundreds of ships stranded at its entrances and rattling global oil markets.

Two oil tankers were struck by explosives in Iraqi waters near the port of Basra. The Islamic Revolutionary Guard Corps claimed responsibility for the attacks, which killed at least one crew member and set both vessels ablaze, according to the Associated Press. A third unnamed vessel was reported to have been struck by an “unknown projectile” near Dubai and Jebel Ali, causing a small fire, the United Kingdom Maritime Trade Operations reported.

The latest incidents come after drone strikes targeted fuel storage facilities across the Gulf, including at energy sites in Bahrain and at the port of Salalah in Oman, an important hub for tankers seeking to bypass the Strait.

“They will pay the price. We will destroy their facilities,” Khamenei said. “It is necessary to continue our defensive activity, including continuing to close the Strait of Hormuz.”

Iran’s new Supreme Leader Mojtaba Khamenei has never held a formal position in government, but his appointment as his late father’s successor amid the US-Israeli war on his country was not unexpected.

Iran’s Assembly of Experts appointed the 56-year-old mid-ranking religious scholar to the position on Sunday, just over a week after his late father, Ayatollah Ali Khamenei, was killed in United States-Israeli strikes.

Khamenei, who has strong ties with the Islamic Revolutionary Guard Corps (IRGC) and his late father’s still-influential office, is seen as a hardliner who will provide continuity in the country.

His appointment, which came after he lost both his father and his wife in strikes, was interpreted as a defiant choice signalling continuity as the Islamic Republic faces the biggest crisis in its 47-year history.

Khamenei received immediate backing from figures in Iran’s political and security establishment, including IRGC leaders, President Masoud Pezeshkian and Ali Larijani, secretary of the Supreme National Security Council.

Outside the country, reactions were mixed:

Oman

Oman was a mediator in recent talks between Iran and the United States, which collapsed when the US and Israel unleashed their war on Iran last month.

Oman’s Sultan Haitham bin Tariq Al Said on Monday sent a “cable of congratulations” to Khamenei on his appointment as Iran’s new supreme leader, according to the official Oman News Agency.

Iraq

Iraqi Prime Minister Mohammed Shia al-Sudani also congratulated Khamenei on his appointment on Monday.

“We express our confidence in the ability of the new leadership in the Islamic Republic of Iran to manage this sensitive stage, and continue to strengthen the unity of the Iranian people in facing the current challenges,” al-Sudani said in a statement.

He reaffirmed Iraq’s solidarity and support for Iran and “all steps aimed at ending the conflict and rejecting military operations against its sovereignty, in order to preserve the stability of other countries in the region”.

United States

US President Donald Trump had previously dismissed Mojtaba Khamenei as a “lightweight”, and insisted he should have a say in appointing a new Iranian leader, which Tehran rejected.

On Monday, Trump told NBC News, “I think they made a big mistake. I don’t know if it’s going to last. I think they made a mistake.”

Later on Monday, he told CBS News: “I have no message for him.”

Trump said he has someone in mind to lead Iran, but did not elaborate.

Israel

The ⁠Israeli ⁠military has already threatened to kill any replacement for the late Ali Khamenei.

Israel’s Foreign Ministry said Monday that Mojtaba Khamenei was a “tyrant” like his slain father, and would continue what it described as the Iranian “regime’s brutality”.

In a post on X featuring a picture of Mojtaba Khamenei and his father Ayatollah Ali Khamenei, holding guns, the ministry wrote: “Mojtaba Khamenei. Like Father Like Son”.

“Mojtaba Khamenei’s hands are already stained with the bloodshed that defined his father’s rule. Another tyrant to continue the Iranian regime’s brutality,” said the ministry.

Russia

Russian President Vladimir Putin on Monday pledged “unwavering support” to Iran.

“I would like to reaffirm our unwavering support for Tehran and solidarity with our Iranian friends,” Putin said in a message to Khamenei, adding that “Russia has been and will remain a reliable partner” to Iran.

“At a time when Iran is confronting armed aggression, your tenure in this high position will undoubtedly require great courage and dedication,” the Russian leader said.

China

China’s Foreign Ministry spokesman Guo Jiakun told reporters on Monday that Iran’s decision to appoint the younger Khamenei was “based on its constitution”.

“China opposes interference in other countries’ internal affairs under any pretext, and Iran’s sovereignty, security, and territorial integrity should be respected,” he said when asked about the threats against the new leader.

Beijing is a close partner of Tehran and condemned the killing of the former supreme leader, but it has also criticised the Iranian counterstrikes against Gulf states.

Yemen’s Houthis

Yemen’s Houthi rebels on Monday welcomed the appointment of the new supreme leader.

“We congratulate the Islamic Republic of Iran, its leadership and people, on the selection of Sayyid Mojtaba Khamenei as Supreme Leader of the Islamic Revolution at this important and pivotal juncture,” the group said in a statement on Telegram.

It called his selection “a new victory for the Islamic Revolution and a resounding blow to the enemies of the Islamic Republic and the enemies of the nation”.

A new supreme leader in Iran – Mojtaba Khamenei – has replaced his assassinated father.

His selection sends a defiant message to the United States and Israel as they attack the country.

So, who is Iran’s new leader – and what does his appointment mean?

Presenter: Tom McRae

Guests:

Hassan Ahmadian – Associate professor at the University of Tehran

Mehran Kamrava – Professor at Georgetown University in Qatar and director of the Iranian Studies Unit at the Arab Center for Research and Policy Studies

Alex Vatanka – Senior fellow at the Middle East Institute in Washington, DC

Iran on Monday named Mojtaba Khamenei as its new supreme leader following the killing of his father, Ali Khamenei, in strikes on the first day of the current war. The move signals that Iran’s ruling establishment intends to maintain its hardline course despite the dramatic loss of the country’s most powerful figure.

Mojtaba Khamenei, a 56-year-old Shi’ite cleric with strong connections to Iran’s security apparatus, was quickly endorsed by political leaders, military bodies and religious institutions. Public ceremonies and declarations of loyalty were organised across the country, reflecting a rapid effort by the political system to demonstrate continuity and stability at a moment of intense external pressure.

The appointment is widely seen as closing off any near-term possibility of a negotiated end to the conflict that has engulfed the region. With a figure closely aligned with Iran’s powerful security institutions now leading the state, analysts expect Tehran to maintain a confrontational stance rather than seek quick concessions.

Consolidation of power within the system

Iran’s political and military leadership rallied quickly behind the new leader. Statements from the defence establishment pledged unwavering loyalty to Mojtaba Khamenei, describing him as commander-in-chief and promising to follow him “until the last drop of our blood.”

The swift consolidation of authority highlights the enduring strength of the Islamic Republic’s institutional framework. The supreme leader sits at the top of Iran’s political hierarchy, exercising ultimate control over the military, judiciary and key elements of the state.

Supporters of the government described the succession as a demonstration that the system could withstand even the killing of its long-serving leader. Some Iranians interviewed by media outlets expressed pride and relief that the leadership transition had occurred quickly during wartime, viewing it as a sign of national resilience.

Others, however, reacted with disappointment or anxiety. Many critics of the government had hoped that the death of the elder Khamenei might open the door to political change. Instead, the elevation of his son long considered close to the security establishment suggests continuity rather than reform.

Divided reactions inside Iran

Public reactions within Iran have reflected the country’s deep political divisions. Supporters of the authorities praised Mojtaba Khamenei’s appointment as a defiant response to foreign pressure and an affirmation that the Islamic Republic remains intact.

Critics, however, say the change offers little hope for political liberalisation. Many opposition figures and activists have remained quiet, in part because of fears of repression during wartime. The government recently suppressed widespread protests, and security forces maintain a strong presence across major cities.

Observers note that Iran’s powerful security institutions including the Islamic Revolutionary Guard Corps retain extensive resources and influence. The Guard and associated networks also control major sectors of the economy, reinforcing the system’s ability to maintain power even during crises.

International pressure and escalating conflict

The leadership change comes amid escalating hostilities involving Israel and the United States. U.S. President Donald Trump has demanded Iran’s unconditional surrender and has suggested Washington should have influence over the selection of Iran’s supreme leader.

Trump has previously warned that any successor to Ali Khamenei could face the same fate if Iran continued what he described as hostile policies. Israeli officials have also indicated that senior Iranian leaders could remain targets unless Tehran abandons its military programmes and regional alliances.

Israel’s stated war aims include dismantling Iran’s missile and nuclear capabilities, and some officials have also spoken of ending the country’s clerical system of rule. Washington’s position initially focused on military capabilities but has hardened during the conflict.

Meanwhile, Israeli operations have expanded across the region, including strikes in Beirut and other areas linked to Iranian-backed groups such as Hezbollah. Fighting and airstrikes have resulted in significant casualties in Iran, Lebanon and Israel.

Energy shock and global economic impact

The war has triggered one of the most severe energy disruptions in decades. Shipping through the Strait of Hormuz, a narrow waterway near Iran’s coast through which roughly a fifth of global oil and liquefied natural gas supplies pass, has been effectively halted.

With tankers unable to move for more than a week, producers have faced storage shortages and in some cases have been forced to halt pumping. The supply shock sent Brent crude prices surging sharply, briefly approaching $120 per barrel before settling above $100.

The surge has rattled financial markets worldwide, pushing stock indexes in Asia and Europe sharply lower and raising fears of inflationary pressure in major economies. Rising fuel costs also carry political implications in the United States, where gasoline prices are closely watched by voters ahead of upcoming elections.

Regional fighting intensifies

Military operations have continued across multiple fronts. Israeli forces have struck targets in central Iran and carried out attacks on infrastructure, including an oil refinery that sent thick black smoke rising over the capital, Tehran.

At the same time, Iranian-aligned forces have launched attacks elsewhere in the region. A refinery in Bahrain was damaged in a strike that forced the national oil company to declare force majeure, further highlighting the widening scope of the conflict.

Casualties have mounted rapidly. Iranian officials say more than 1,300 civilians have been killed in U.S.-Israeli strikes, while deaths have also been reported in Lebanon and Israel. Israeli authorities confirmed fatalities from Iranian missile attacks, and several soldiers have been killed in fighting along the Lebanese border.

Iran’s system of rule

The role of supreme leader was created following the Iranian Revolution of 1979, which established the Islamic Republic under clerical leadership. The position combines religious authority with ultimate political power.

Ali Khamenei held the office for more than three decades, shaping Iran’s foreign policy and domestic governance during periods of sanctions, regional conflict and diplomatic negotiations with world powers. His death in wartime marked one of the most dramatic moments in the country’s modern political history.

Mojtaba Khamenei has long been viewed as an influential figure behind the scenes, particularly within security institutions. Though less publicly prominent than other clerics, he has been widely considered close to the Revolutionary Guard and to key power brokers within the political establishment.

Analysis: Hardline continuity and a longer war

The rapid elevation of Mojtaba Khamenei suggests that Iran’s ruling system is prioritising continuity and cohesion over reform or compromise. By choosing a figure closely aligned with the security establishment, the leadership appears determined to project strength during wartime.

This choice reduces the likelihood of immediate diplomatic concessions that might have opened a path to de-escalation. A leader closely tied to Iran’s military institutions is more likely to emphasise resistance and national defence rather than negotiation under pressure.

At the same time, the succession demonstrates the resilience of Iran’s political structure. Despite the loss of its long-time leader and ongoing military attacks, the state apparatus has moved quickly to stabilise authority and present a unified front.

For the wider region and the global economy, the implications are significant. If Iran continues to pursue a confrontational strategy under its new leader, the conflict could become prolonged, keeping energy markets volatile and increasing the risk of further escalation across the Middle East.

With information from Reuters.

Iran’s Islamic Revolutionary Guard Corps has pledged allegiance to Mojtaba Khamenei, the country’s newly-elected supreme leader. While some Iranians have celebrated, many are dismayed the 56-year-old cleric, accused of human rights abuses, has ascended to the country’s highest office.

Iran’s military and political leaders pledge allegiance to Mojtaba Khamenei as Saudi Arabia reports two deaths amid Iranian counterattacks.

U.S. President Donald Trump says that Iran’s Supreme Leader Ayatollah Ali Khamenei has been killed. Khamenei was among a number of senior Iranian officials targeted in the initial wave of U.S.-Israeli strikes earlier today.

Readers can first get caught up on the ongoing conflict in our previous rolling coverage here.

“Khamenei, one of the most evil people in History, is dead. This is not only Justice for the people of Iran, but for all Great Americans, and those people from many Countries throughout the World, that have been killed or mutilated by Khamenei and his gang of bloodthirsty THUGS,” Trump wrote in a post on his Truth Social social media network. “He was unable to avoid our Intelligence and Highly Sophisticated Tracking Systems and, working closely with Israel, there was not a thing he, or the other leaders that have been killed along with him, could do.”

Members of Nigeria’s Shia Muslim community are mourning Iran’s Supreme Leader Ayatollah Ali Khamenei who was killed by a US-Israeli attack in Tehran. Demonstrators carried his portrait and waved Iranian flags while they dragged American and Israeli flags along the ground.

The Lebanese armed group has not taken action against Israel or US assets since the attacks on Iran began on Saturday.

The Lebanese armed group Hezbollah has pledged to fulfil its duty in “confronting aggression” after attacks by Israel and the United States killed Iranian Supreme Leader Ayatollah Ali Khamenei.

In a statement on Sunday, the Iran-aligned group offered condolences for Khamenei, who was killed along with other Iranian leaders in a joint US-Israeli attack on Iran early on Saturday.

“That the criminal American and Zionist [Israeli] aggression targeted our guardian, our leader, the leader of the Nation, Imam Khamenei (may his soul be sanctified), along with a group of leaders, officials, and innocent sons of the Iranian people, represents the height of criminality,” the group said.

“We will fulfill our duty in confronting aggression, confident in Allah’s victory, guidance, and support… No matter how great the sacrifices, we will not abandon the field of honour and resistance, nor the confrontation against American tyranny and Zionist criminality, in defence of our land, our dignity, and our independent choices,” it added.

So far, Hezbollah, which operates as a largely independent armed force within Lebanon, has not taken action against Israel or US assets since the attacks began on Saturday.

Lebanese President Joseph Aoun said on Sunday that “the decision of war and peace rests solely with the Lebanese state”, after an emergency meeting of the country’s Higher Defence Council.

On Saturday, Lebanese Prime Minister Nawaf Salam said he would not accept anyone “dragging the country into adventures that threaten its security and unity”.

“In light of the serious developments unfolding in the region, I once again call on all Lebanese to act with wisdom and patriotism, placing Lebanon and the Lebanese people’s interests above any other consideration,” Salam said in a statement sent to the Reuters news agency.

Lebanon is continuing its attempts to recover after a yearlong war between Hezbollah and Israel that ended after the November 2024 ceasefire. However, Israel has continued to target Lebanon in violation of the agreement and has maintained several military outposts within Lebanese territory.

Thousands mourn in Beirut

On Sunday, Hezbollah organised a gathering of thousands of supporters in the capital, Beirut, to mourn Khamenei, as they chanted, “Death to America, death to Israel”.

Zainab al-Moussawi, a 23-year-old teacher, told the AFP news agency that the death of Khamenei was “very painful. It is a tragedy.”

“It felt just like the martyrdom of the Sayyed,” she added, referring to Israel’s killing of former Hezbollah leader Hassan Nasrallah in 2024.

Hezbollah also called on mosques to recite the Quran and organise other mourning ceremonies in different parts of the country where the group holds influence to mark Khamenei’s death.

Iranian state media confirmed that Ayatollah Ali Khamenei, Iran’s supreme leader since 1989, was killed in a joint US-Israeli air strike. Here’s what we know about him and the key moments that defined his rule.

The assassination of Iran’s Supreme Leader Ayatollah Ali Khamenei, 86, in the US-Israeli air attacks has thrust Tehran to a pivotal crossroads as the clergy looks to pick the late ayatollah’s successor.

With Iran on a war footing, several senior leaders close to Khamenei were killed in the attack as well, including his top security adviser Ali Shamkani and Islamic Revolutionary Guard Corps (IRGC) commander-in-chief Mohammad Pakpour.

Tehran has vowed to avenge the killing of Khamenei. The US President Donald Trump warned against the retaliatory attacks and suggested that the strikes on Iran would continue.

The US-Israeli attacks hit Iran on Saturday, when Tehran’s top diplomats were waiting for the next round of talks on upcoming Monday to lock a deal with Trump, including laying down nuclear ambitions, and avoiding an armed conflict.

After 36 years in power, the late ayatollah’s killing has left Iran’s top clerics to prepare for the transfer of power to the next Supreme Leader. That’s something that they have only done once before, four decades ago.

So, who will be the next Supreme Leader of Iran? And how will he be chosen?

How is the Supreme Leader selected?

Iran’s Supreme Leader is selected by the Assembly of Experts, an 88-member clerical body elected by the public every eight years.

Candidates who run for the Assembly must first be vetted and approved by the Guardian Council, a powerful oversight body whose members are partly appointed by the Supreme Leader himself.

When the position becomes vacant, due to death or resignation, the Assembly of Experts convenes to choose a successor. A simple majority is sufficient to appoint the new Supreme Leader.

As per Iran’s constitution, the candidate must be a senior jurist with deep knowledge of Shi’a jurisprudence, as well as qualities such as political judgment, courage, and administrative capability.

Earlier, there had been only one other transfer of power in the office of the Supreme Leader of Iran, when Grand Ayatollah Ruhollah Khomeini, the leader of the Islamic Revolution, died at age 86 in 1989.

What happens in Iran during a leadership vacuum?

Article 111 of Iran’s constitution mandates that a temporary council handle duties until a new supreme leader is elected.

That council will have: President Masoud Pezeshkian, Supreme Court Chief Justice Gholam-Hossein Mohseni-Ejei, and a cleric from the Guardian Council, according to Iranian media.

They will lead the country until the assembly formally picks the new supreme leader.

Iran’s security chief and a close confidante of the late Khamenei, Ali Larijani, said on Sunday that the transition process is underway.

Luciano Zaccara, a research associate professor in Gulf Politics at Qatar University, told Al Jazeera that Iran’s political system has been prepared for the current situation, knowing that Khamenei’s assassination was a real possibility.

“Trump wants to get the best deal possible, but the method he’s using to get that deal is to annihilate or destroy as much as he can,” Zaccara said. “This is the way to impose conditions, not to negotiate anything. Trump wants a surrender of the regime, not a change.”

The late Ayatollah made sure to put in a structure, he added, to avoid a vacuum of power and kept replacements for all the officials eliminated in the last few months ready. “The structures remain, the line of power [and] the line of command remain in place,” Zaccara told Al Jazeera.

What is the Supreme Leader of Iran?

The Supreme Leader is the top position in the Islamic Republic’s political and religious hierarchy.

He is essentially the commander-in-chief of the armed forces and the final word in the country – and appoints key judicial, military, and media officials.

He also leads the mighty Revolutionary Guard, a paramilitary force that leads the so-called Axis of Resistance.

Here are the contenders for the top job in Tehran

Mojtaba Khamenei

Khamenei’s second son, Mojtaba Khamenei, is among the top contenders to succeed his father in Iran.

He is known to wield significant influence among the administrators and the Islamic Revolutionary Guard Corps (IRGC), the most powerful military body.

However, Khamenei’s lineage is also among the biggest barriers he faces.

Khamenei was reportedly opposed to the father-to-son succession. It is frowned upon in Iran, particularly after the US-backed Shah Mohammad Reza Pahlavi monarchy was toppled in 1979.

Alireza Arafi

Arafi, a 67-year-old cleric, is an influential figure in the Islamic Republic’s religious establishment, but not a widely accepted political actor.

He serves as the deputy chairman of the Assembly of Experts, the body responsible for overseeing the selection of the Supreme Leader, and has been a member of the Guardian Council, which vets election candidates and laws passed by parliament.

Arafi was appointed as ⁠the jurist member of ⁠Iran’s Leadership Council, the body tasked with fulfilling the ‌Supreme Leader’s role until the Assembly of Experts elects a new leader, Iran’s state media reported on Sunday.

Arafi is also the Friday prayer leader of Qom — Iran’s most important religious center — and heads the country’s seminary system, overseeing clerical education nationwide.

Mohammad Mehdi Mirbagheri

Mirbagheri is an ultra-hardline clerical voice in the establishment and a member of the Assembly of Experts.

He is widely known for his unrelenting anti-Western worldview — and currently heads the Islamic Sciences Academy in the northern city of Qom.

Gholam-Hossein Mohseni-Ejei

Mohseni-Ejei is a senior Iranian cleric and currently heads the judiciary of the Islamic Republic, appointed to the role in July 2021 by the late Khamenei.

He previously served as Minister of Intelligence from 2005 to 2009 and later as Prosecutor-General and First Deputy Chief Justice. He is regarded as a hardline figure aligned with the conservative wing of the regime.

Hassan Khomeini

Khomeini, 54, is among the most discussed names in succession talks for the next Supreme Leader.

He is the grandson of Ayatollah Ruhollah Khomeini, the founder of the Islamic Republic, and also the custodian of his grandfather’s mausoleum in Tehran.

While he has not held a public office, Khomeini is a reformist figure known for his rather moderate views on public life and policy. He attempted to run for the Assembly of Experts in 2016, but the vetting council disqualified him.

The assassination of Iran’s Supreme Leader Ayatollah Ali Khamenei in joint US-Israeli air attacks has caused one of the most significant blows to the country’s leadership since the 1979 Islamic revolution, triggering protests by his supporters.

Khamenei assumed Iran’s supreme leadership in 1989 after the death of Ayatollah Ruhollah Khomeini, who had led the Islamic revolution against the pro-United States Shah Mohammad Reza Pahlavi.

On Sunday, Iranian President Masoud Pezeshkian said seeking revenge for the killing of Khamenei and other senior Iranian officials is the country’s “duty and legitimate right”.

President Donald Trump has framed the operation as a “liberation” moment, predicting that the removal of the “head” will lead to the swift collapse of the body. However, in Iran, the reality suggests a far more complex situation.

Interviews with insiders, military experts and political sociologists suggest that the decapitation of Iran’s top leadership may not go the way the West envisions. Instead, it risks birthing a “garrison state” – a paranoid, militarised system fighting for its existence with no political red lines left to cross.

The limits of ‘decapitation’

The central premise of the US operation is that Iran is too brittle to survive the death of its supreme leader. In a phone interview with CBS News, Trump claimed he “knows exactly” who is calling the shots in Tehran, adding that “there are some good candidates” to replace the supreme leader. He did not elaborate on his claims.

However, military analysts warn against the assumption that air strikes alone can trigger “regime change”. Michael Mulroy, a former US deputy assistant secretary of defence, told Al Jazeera Arabic that without “boots on the ground” or a fully armed organic uprising, the state’s deep security apparatus can survive simply by maintaining cohesion.

“You cannot facilitate regime change through air strikes alone,” Mulroy said. “If anyone is left alive to speak, the regime is still there.”

This resilience is rooted in Iran’s dual military structure. The government is protected not just by a regular army (Artesh), but also by the Islamic Revolutionary Guard Corps (IRGC) – a powerful parallel military force constitutionally tasked with protecting the velayat-e faqih system – the principle of the guardianship of the Islamic jurist.

Supporting them is the Basij, a vast paramilitary volunteer militia embedded in every neighbourhood, specifically trained to crush internal dissent and mobilise ideological loyalists.

That cohesion is already being tested.

Hossein Royvaran, a political analyst based in Tehran, confirmed that the strikes wiped out the country’s top security tier, including Khamenei’s adviser and secretary of the newly-formed Supreme Defence Council, Ali Shamkhani.

The secretary of Iran’s Supreme National Security Council, Ali Larijani, said the leadership transition will begin on Sunday.

“An interim leadership council will soon be formed. The president, the head of the judiciary and a jurist from the Guardian Council will assume responsibility until the election of the next leader,” said Larijani.

“This council will be established as soon as possible. We are working to form it as early as today,” he said in an interview broadcast by state TV.

The rapid formation of an interim leadership council – comprising the president, judiciary chief, and a Guardian Council religious leader – indicates that the system’s “survival protocols” have been activated.

According to Royvaran, the system is designed to be “institutional, not personal”, capable of functioning on “autopilot” even when the political leadership is severed.

But a Tehran-based analyst said direction of Iran is still unclear as officials try to ‘project stability’.

“Officials here are trying to project stability, emphasising that the situation is under control and that state institutions are functioning effectively,” Abas Aslani, senior research fellow at the Center for Middle East Strategic Studies, said.

“Today, [the US-Israeli] air strikes targeted security and military infrastructure in the capital [Tehran] and other cities. There are expectations that such strikes could continue – and possibly intensify – in the coming hours or days,” he told Al Jazeera.

“That prospect of escalation is not something many ordinary Iranians welcome. At the same time, Iranian officials are issuing strong warnings, suggesting they could respond with capabilities that have not previously been used against Israel or the United States.”

From theocracy to nationalist survival

Perhaps the most significant shift in the immediate aftermath is Iran’s pivot from religious legitimacy to survivalist nationalism.

Aware that the death of the supreme leader might sever the spiritual bond with parts of the population, surviving officials are reframing the war not as a defence of the clergy, but as a defence of Iran’s territorial integrity.

Larijani, a conservative heavyweight and key figure in the transition, issued a stark warning that Israel’s ultimate goal is the “partition” of Iran. By raising the spectre of Iran being broken into ethnic statelets, the leadership aims to rally secular Iranians and the opposition against a common external enemy.

This strategy complicates the US hope for a popular uprising.

Saleh al-Mutairi, a political sociologist, notes that the government’s declaration of 40 days of mourning creates a “funeral trap” for the opposition. The streets will likely be filled with millions of mourners, creating a human shield for the government and making it logistically and morally difficult for antigovernment protests to gain momentum in the short term.

The end of ‘strategic patience’

If Iran survives the initial shock, the nation that emerges will likely be fundamentally different: less calculated and probably more violent.

For years, Khamenei championed a doctrine of “strategic patience”, often absorbing blows to avoid all-out war.

Hassan Ahmadian, a professor at the University of Tehran, says the era died with the supreme leader.

“Iran learned a hard lesson from the June 2025 war: Restraint is interpreted as weakness,” Ahmadian told Al Jazeera Arabic. The new calculus in Tehran is likely to be a “scorched earth” policy.

“The decision has been made. If attacked, Iran will burn everything,” Ahmadian added, suggesting that the response will be broader and more painful than anything seen in previous escalations.”

This risks a scenario where field commanders, freed from the political caution of the clerical leadership, lash out with greater ferocity. The assassination has humiliated the security establishment, exposing what Liqaa Maki, a senior researcher at Al Jazeera Centre for Studies, calls a catastrophic intelligence failure.

“The believer is not bitten from the same hole twice, yet Iran has been bitten twice,” Maki said, referring to the pattern of US strikes. This “total exposure” is likely to drive the surviving leadership underground, turning Iran into a hyper-security state that views any internal dissent as foreign collaboration, he said.

While the “head” of Iran has been removed, the “body” – armed with one of the largest missile arsenals in the Middle East – remains, Maki said.

Iran has begun 40 days of mourning after Supreme Leader Ayatollah Ali Khamenei was killed in ongoing attacks by the United States and Israel, according to Iranian state media.

Top security officials were also killed in Saturday’s strikes, along with Khamenei’s daughter, son-in-law and grandson. The killings mark one of the most significant blows to Iran’s leadership since the 1979 Islamic revolution.

President Masoud Pezeshkian condemned the killing as “a great crime”, according to a statement from his office. He also declared seven days of public holidays in addition to the 40-day mourning period.

Reporting from Tehran, Al Jazeera’s Tohid Asadi said people were pouring into the streets of the capital following the news of Khamenei’s killing.

“There will be expected ceremonies,” he said, noting they would likely take place amid continuing bombardment across the country.

Protests denouncing Khamenei’s killing were also reported elsewhere, including Shiraz, Yasuj and Lorestan.

“There will be expected ceremonies,” he said, noting they would likely take place amid continuing bombardment across the country.

Footage aired by Iranian state media showed supporters mourning at the shrine of Imam Reza in Mashhad, with several people seen crying and collapsing in grief.

The killing also led to protests in neighbouring Iraq, which declared three days of public mourning. In Baghdad, protesters confronted security forces in the heavily fortified Green Zone, which houses Iraqi government buildings and foreign embassies.

Videos verified by Al Jazeera showed demonstrators waving flags and shouting slogans, with witnesses saying some were attempting to mobilise towards the US Embassy. Footage also showed protesters blocking vehicles at a roundabout near one of the entrances to the area.

There was also a protest in the Pakistani city of Karachi, where footage, verified by Al Jazeera, showed people setting fire to and smashing the windows of the US consulate.

However, there have also been reports of celebrations in Iran, with the Reuters news agency quoting witnesses as saying some people had taken to the streets in Tehran, the nearby city of Karaj and the central city of Isfahan.

Meanwhile, the official IRNA news agency reported that a three-person council, consisting of the country’s president, the chief of the judiciary, and one of the jurists of the Guardian Council, will temporarily assume all leadership duties in the country. The body will temporarily oversee the country until a new supreme leader is elected.

Khamenei assumed leadership of Iran in 1989 following the death of Ayatollah Ruhollah Khomeini, who had led the Islamic revolution a decade earlier.

While Khomeini was regarded as the ideological force behind the revolution that ended the Pahlavi monarchy, Khamenei went on to shape Iran’s military and paramilitary apparatus, strengthening both its domestic control and its regional influence.

Attacks across the region

Meanwhile, the Islamic Revolutionary Guard Corps (IRGC) pledged revenge and said it had launched strikes on 27 bases hosting US troops in the region, as well as Israeli military facilities in Tel Aviv.

Explosions have continued to be reported in Qatar and the United Arab Emirates, while security alerts are in place in several countries across the region.

US President Donald Trump, in a social media post on Sunday, warned Iran that it would be hit “with a force that has ⁠never been seen before” if it retaliated.

Iran’s retaliatory attacks since Saturday have targeted Israel and US assets across multiple Middle East countries, including Qatar, the UAE, Kuwait, Bahrain, Jordan, Saudi Arabia and Iraq.

Harlan Ullman, chairman of the strategic advisory firm Killowen Group and an adviser to the Atlantic Council in Washington, DC, said the US may have made a “big mistake” by killing Khamenei.

“Decapitation only works when you get all the leaders, and I don’t think that we got all the leaders,” Ullman said, adding that the US should not expect Iran’s leadership to enter negotiations in the immediate aftermath.

Iranian state media reported on Saturday at least 201 people have been killed in the joint US-Israeli attacks across 24 provinces, citing the Red Crescent. In southern Iran, at least 148 people were killed and 95 wounded in a strike on an elementary girls’ school in Minab on Saturday, with the toll continuing to rise, according to state media.

US President Donald Trump says Iran’s Supreme Leader Ayatollah Ali Khamenei was killed in joint US-Israeli strikes. Israeli officials cite “growing signs” he’s dead. Iranian state media deny the claim, saying Khamenei remains in command. At least 201 reported killed as Iran retaliates.