Iran's new leader has never been tested. He now faces an existential battle

March 9, 2026

Mojtaba Khamenei, the 56-year-old son of assassinated Supreme Leader Ayatollah Ali Khamenei, has assumed power as Iran's third supreme leader during an unprecedented crisis for the Islamic Republic. Selected by the Assembly of Experts following his father's death in an Israeli strike that also killed his mother, wife, and son, the new leader is considered an ultraconservative hardliner closely aligned with the powerful Islamic Revolutionary Guard Corps. Despite working in his father's shadow for decades and never holding formal government positions or making public speeches, his ascension signals a further marginalization of reformist factions within Iran's political system.

Who is affected

Mojtaba Khamenei (new supreme leader)
Iranian protesters who demonstrated against the previous regime in January
Reformist politicians, including current President Masoud Pezeshkian and Hassan Khomeini
Islamic Revolutionary Guard Corps (IRGC) members and commanders
Security forces pledged to serve the new leader
Ali Larijani (head of Supreme National Security Council)
Mohammad Baqer Qalibaf (speaker of parliament)
US President Donald Trump
Israeli Defense Minister Israel Katz
Iran's neighbors and the broader Middle East region

What action is being taken

Large crowds are taking to the streets shouting "Allahu Akbar" to celebrate Mojtaba Khamenei's selection
Security forces are pledging to serve their new commander-in-chief
Missiles are being fired in the new supreme leader's name
Some protesters are shouting "Death to Mojtaba" from their apartments
IRGC commanders are calling the shots
President Trump is issuing warnings that Mojtaba Khamenei "won't last long"

Why it matters

This leadership transition occurs at a moment of existential crisis for Iran, representing the theocracy's greatest test in five decades. The ascension of an ultraconservative hardliner closely aligned with the Revolutionary Guard suggests an intensification of Iran's authoritarian approach, pushing reformists further to the margins and potentially foreclosing diplomatic solutions. The personal nature of the conflict—with Mojtaba having lost multiple family members in the Israeli strike—combined with his designation as a target by both the US and Israel, creates an extremely volatile situation. This leadership change could determine whether Iran pursues escalation or de-escalation in a regional war that is already causing economic and political shocks throughout the Middle East and beyond.

What's next

President Trump has warned that Mojtaba Khamenei "won't last long," and Israeli Defense Minister Israel Katz has called him "an unequivocal target." Khamenei may remain in the shadows for a while given these threats. The article notes that Iran is trapped in an escalating war affecting the entire Middle East and causing economic disruptions, suggesting continued regional conflict ahead.

Read full article from source: BBC