The reported killing of Iran’s Supreme Leader Ali Khamenei in the opening phase of joint US-Israeli air strikes has plunged the Islamic Republic into its most fragile position since the 1979 revolution.
The operation—described by Washington as a decisive attempt to dismantle Iran’s command structure—targeted senior military and political figures. By Saturday night, widespread reports of Khamenei’s death triggered rare scenes of public reaction, including small celebrations in parts of Iran and among diaspora communities abroad. For many critics of the regime, the development signaled a historic rupture.
US President Donald Trump urged Iranians to “take over your government,” while Israeli Prime Minister Benjamin Netanyahu suggested regime change was both achievable and desirable. The military campaign, dubbed Operation Epic Fury by US officials, appeared tightly coordinated. However, the political consequences inside Iran remain uncertain and potentially volatile.
On Sunday, Iranian state media confirmed Khamenei’s death and announced the formation of a temporary three-man council to assume executive authority. The move was intended to project continuity and stability amid the shock.
How Is a New Supreme Leader Chosen?
Under Iran’s constitution, the responsibility for selecting a new supreme leader lies with the Assembly of Experts, an 88-member clerical council elected for eight-year terms. However, candidates for the Assembly must first be approved by the Guardian Council, a 12-member body closely tied to the supreme leader’s office. Six of its members are appointed directly by the supreme leader, and the other six are nominated by the judiciary and approved by parliament.
This structure means that Khamenei had significant influence over the very institution now tasked with choosing his successor.
The selection process typically takes place behind closed doors, with deliberations and voting kept confidential. A smaller internal committee is believed to narrow down potential candidates before presenting names to the full Assembly.
Speculation has previously focused on Khamenei’s son, Mojtaba, though shifting internal power dynamics—particularly after reported deaths of senior Islamic Revolutionary Guard Corps (IRGC) commanders—could alter succession calculations. The 1989 transition that elevated Khamenei himself, despite not being widely seen as a frontrunner, underscores the unpredictability of the process.
Military and Regional Fallout
Militarily, Iran appears to have suffered a major blow, with reports of senior commanders killed and command infrastructure damaged. However, Iran has demonstrated continued operational capability.
Within days of the strikes, Iranian forces launched retaliatory attacks against US bases in the region and targets in Israel. For the first time, missile strikes reportedly hit non-military sites in Dubai and a civilian airport in Kuwait, widening the scope of the conflict.
The escalation raises the risk of broader regional confrontation, particularly if Iran’s allied armed groups across the Middle East become more directly involved.
At the same time, sustained military pressure combined with renewed domestic protests could test the cohesion of Iran’s security apparatus. If elements of the armed forces or security services fragment, formal constitutional mechanisms for succession may become secondary to events unfolding on the ground.
A System Under Strain
Iran retains significant institutional depth, armed forces, and the capacity to retaliate. Yet it is now without its long-standing central authority figure and faces continuing external military pressure.
Whether the Islamic Republic stabilizes through an orderly succession process or enters a prolonged period of instability will depend on several factors: the unity of the IRGC and security forces, the scale of domestic unrest, and the trajectory of the regional conflict.
The coming days are likely to clarify whether Iran’s leadership can maintain control—or whether the crisis deepens into systemic transformation.
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