The Islamic Republic of Iran has had three supreme leaders in its 47-year history. Ayatollah Ruhollah Khomeini founded the republic and led it until his death in 1989. Ayatollah Ali Khamenei succeeded him and led for 37 years until his assassination on February 28. Now Mojtaba Khamenei, Ali’s son, has been confirmed as the third supreme leader by the Assembly of Experts, inaugurating what may be the most consequential chapter in the republic’s history — and presenting it with the most severe test it has ever faced.
Mojtaba, 56, was born in Mashhad and educated in Qom. He spent his career as an informal power broker within his father’s government, cultivating alliances with the IRGC and conservative clergy that gave him the institutional backing needed to win the Assembly’s confidence. He has no formal governing experience and enters the role at a moment of extraordinary national stress — military conflict, economic pressure, regional instability, and the unprecedented challenge of dynastic succession in a republic.
The institutional endorsements that followed his appointment were rapid and uniform. The IRGC, armed forces, parliament, and security apparatus all pledged their loyalty. Ali Larijani praised Mojtaba’s suitability for the role. Yemen’s Houthis congratulated him enthusiastically. State media broadcast comprehensive coverage of institutional unity. Missiles inscribed with the new leader’s name appeared in military broadcasts, binding the armed forces to the new supreme leadership in the most visible possible way.
Israel continued its operations, launching fresh strikes on Iranian infrastructure on Monday and also hitting Hezbollah in Lebanon. Iran attacked five Gulf states simultaneously, killing civilians in Saudi Arabia and damaging Bahrain’s desalination plant. The IRGC threatened to push oil above $200 per barrel. The United States pledged not to target Iranian energy infrastructure. Trump warned about Mojtaba’s durability. None of the crisis dynamics that preceded his appointment showed any sign of abating.
The third supreme leader of the Islamic Republic faces a combination of challenges that neither of his predecessors encountered in the same form or at the same intensity. The revolutionary republic has survived before — wars, sanctions, internal protests, and international isolation. Whether it can survive a militarily active adversarial coalition, a dynastic succession crisis, and an untested leader all at once is the question that Mojtaba Khamenei’s tenure will ultimately answer.
Iran Appoints Supreme Leader Number Three — And the Revolutionary State Faces Its Greatest Test
