Iran’s security chief Ali Larijani killed in Israeli strikes in Tehran; Iran vows stronger retaliation

Iran’s security chief Ali Larijani killed in Israeli strikes in Tehran; Iran vows stronger retaliation

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An Israeli air strike on Tehran on March 17, 2026, killed Ali Larijani, one of the country’s most influential and experienced policymakers. Iranian authorities confirmed that Larijani, who served as secretary of the Supreme National Security Council, was killed along with his son and bodyguards in the attack.

The strike came at a time of a major escalation in a broader campaign targeting senior Iranian officials. Within weeks, multiple high-ranking figures have been eliminated, suggesting a sustained effort to weaken Iran’s command structure during wartime.

Larijani’s death stands out due to his central role in coordinating strategy across military, political, and diplomatic domains.

Although not a conventional battlefield commander, Larijani was widely regarded as a key architect of Iran’s national strategy. As secretary of the Supreme National Security Council, he sat at the center of decision-making on war, diplomacy, and nuclear policy, wielding influence across multiple power centers.

Israeli Defense Minister Israel Katz claimed responsibility for the operation, stating that Larijani and Basij commander Gholamreza Soleimani were “eliminated” in overnight strikes. Iranian officials have condemned the attack, framing it as a direct assault on the country’s leadership.

Larijani is the most senior Iranian official to have been assassinated since the Supreme Leader Ayatollah Ali Khamenei was killed on the first day of Israeli and U.S. strikes on February 28.

Larijani had emerged as one of the most visible and decisive figures in Tehran following the killing of Ali Khamenei. He adopted a defiant stance, signaling that Iran was prepared for a prolonged conflict with both the United States and Israel.

Commander of Iran's Basij forces, Gholamreza Soleimani
Commander of Iran’s Basij forces, Gholamreza Soleimani. (Image Credit: Tasnin News Agency/Wikimedia Commons)

Despite his hardline rhetoric, Larijani was often described within Iran as a pragmatist. He combined ideological loyalty with a calculated, technocratic approach, favoring long-term strategy over short-term escalation.

Larijani’s involvement in diplomatic initiatives, including cooperation frameworks with China, reflected this dual role as both strategist and negotiator.


Managing Multiple Crises

At the time of his death, Larijani was overseeing three major crises that continue to define Iran’s current trajectory. The first was the war itself. He had advocated for expanding the conflict beyond Iran’s borders, including potential disruption of key global energy routes such as the Strait of Hormuz.

The second was a growing wave of domestic unrest. What began as economic discontent had evolved into widespread protests challenging the foundations of the Islamic Republic. The state’s response involved a large-scale crackdown, resulting in thousands of deaths and further deepening internal tensions.

The third was Iran’s nuclear program and stalled negotiations with Washington. Already under strain from sanctions and military pressure, the diplomatic track had effectively collapsed following recent strikes, leaving the future of the program uncertain.

Larijani’s removal leaves all three crises unresolved, transferring responsibility to an as-yet-unclear successor facing a highly volatile environment.

Iranian people gather to mourn after Iran's Supreme Leader Ayatollah Ali Khamenei was killed in Israeli and U.S. strikes
People gather to mourn after Iran’s Supreme Leader Ayatollah Ali Khamenei was killed in Israeli and U.S. strikes, in Tehran, Iran, on March 1, 2026. (Image Credit: Majid Asgaripour/WANA)


Power and Influence

Born in Najaf, Iraq, in 1957, Larijani belonged to one of Iran’s most prominent political families. His academic background in computer science and philosophy gave him a reputation as an intellectual figure within the political elite.

He began his career in the early years of the Islamic Republic, joining the Islamic Revolutionary Guard Corps in the 1980s and later holding senior roles in government ministries. Over time, he moved into strategic and political positions, including serving as head of state broadcasting and later as a key figure in national security decision-making.

Larijani also spent over a decade in parliament, serving as speaker from 2008 to 2020. During this period, he played a significant role in shaping legislation and navigating internal political divisions. Though aligned with conservative factions, he was known for his ability to work across ideological lines when necessary.

His involvement in nuclear negotiations, particularly during the presidency of Mahmoud Ahmadinejad, further elevated his international profile. He remained a central figure in Iran’s strategic planning until his death.

Iran's security chief Ali Larijani
Ali Larijani, former chairman of the parliament of Iran, registers as a candidate for the presidential election at the Interior Ministry in Tehran, Iran, on May 31, 2024. (Image Credit: Majid Asgaripour/WANA)

Larijani’s assassination is likely to accelerate an ongoing shift in power within Iran’s system. With key civilian and strategic figures removed, military institutions may assume greater control over decision-making.

Recent remarks by President Masoud Pezeshkian suggest that armed forces units have been granted broader authority to act independently if senior leadership is incapacitated. This could result in faster responses on the battlefield, but with reduced coordination at the national level.

At the same time, uncertainty surrounding leadership succession has become increasingly visible. The new Supreme Leader, Mojtaba Khamenei, has remained largely out of public view, raising questions about internal cohesion and decision-making processes.

Delays in official announcements and limited public appearances by senior figures point to either heightened security concerns or deeper instability within the leadership structure.


Threats of Retaliation

Iranian army chief Amir Hatami has warned of a “decisive” response to Larijani’s killing, signalling that further escalation is likely.

The loss of a figure seen as a stabilizing force may push the system toward a more aggressive posture both externally and internally.

However, the longer-term outlook is more uncertain. A system that continues to lose experienced figures may struggle to maintain coherence, particularly in a country of more than 90 million people facing simultaneous economic, political, and security challenges.

An explosion caused by a projectile impact after Iran launched missiles into Israel in Tel Aviv, Israel
An explosion caused by a projectile impact after Iran launched missiles into Israel in Tel Aviv, Israel, on February 28, 2026. (Image Credit: Reuters/Gideon Markowicz)

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