Published by Global Banking & Finance Review®
Posted on March 1, 2026
5 min readLast updated: April 2, 2026
Add as preferred source on GoogleAyatollah Ali Khamenei, Iran’s hardline Supreme Leader since 1989, was killed at age 86 in a joint U.S.–Israeli airstrike on February 28, 2026, triggering a regional crisis and a 40-day national mourning.
By Parisa Hafezi
WASHINGTON, March 1 (Reuters) - The 36-year rule of Ayatollah Ali Khamenei built Iran into a powerful anti-U.S. force, spreading its military sway across the Middle East, while using an iron fist to crush repeated unrest at home.
He was killed on Saturday, aged 86, Iranian state media announced, in air strikes by Israel and the U.S. that pulverised his central Tehran compound, after decades of efforts to resolve the dispute over Iran's nuclear programme diplomatically failed.
At first dismissed as weak and indecisive, Khamenei seemed an unlikely choice for supreme leader after the death of the charismatic Ayatollah Ruhollah Khomeini, who founded the Islamic Republic of Iran. But Khamenei's rise to the pinnacle of the country's power structure afforded him a tight grip over the nation's affairs.
Khamenei was "an accident of history" who went from "a weak president to an initially weak supreme leader to one of the five most powerful Iranians of the last 100 years", Karim Sadjadpour at the Carnegie Endowment for International Peace told Reuters.
The ayatollah criticised Washington throughout his rule, continuing to deploy barbs after the start of Donald Trump's second term as U.S. president in 2025.
As a new wave of protests spread through Iran, with slogans such as "Death to the dictator", and as Trump threatened to intervene, Khamenei vowed in January that the country would not "yield to the enemy".
The comment was typical of the ferociously anti-Western Khamenei, in office since 1989.
By maintaining the hardline stance of Khomeini, the Republic's first supreme leader, Khamenei quashed the ambitions of a succession of independent-minded elected presidents who sought more open policies at home and abroad.
In the process, he ensured Iran's isolation, critics say.
Khamenei long denied that Iran's nuclear programme was aimed at producing an atomic weapon, as the West contended. In 2015 he cautiously supported a nuclear deal between world powers and the government of pragmatist President Hassan Rouhani that curbed the country's nuclear programme in return for sanctions relief. The hard-won accord resulted in a partial lifting of Iran's economic and political isolation.
But Khamenei's hostility toward the U.S. was undimmed, intensifying in 2018 when Trump's first administration withdrew from the nuclear agreement and reimposed sanctions to choke Iran's oil and shipping industries.
Following the U.S. withdrawal, Khamenei sided with hardline supporters who criticised Rouhani's policy of appeasement towards the West.
As Trump pressed Iran to agree to a new nuclear deal in 2025, Khamenei condemned "the rude and arrogant leaders of America". "Who are you to decide whether Iran should have enrichment?" he asked.
Khamenei often denounced "the Great Satan" in speeches, reassuring hardliners for whom anti-U.S. sentiment was at the heart of the 1979 revolution, which forced the last shah of Iran into exile.
Iran saw major student-led protests in 1999 and 2002. But Khamenei's authority was put to the test more profoundly in 2009, when the contested results of a presidential election that he had validated ignited violent street unrest, stoking a crisis of legitimacy that lingered until his death.
In 2022, Khamenei cracked down on protesters enraged by the death of Iranian-Kurdish woman Mahsa Amini, 22, who died in the custody of morality police in September of that year.
Faced with some of the most intense turmoil since the revolution, Khamenei blamed Western enemies then resorted to the hanging of protesters and the display of their bodies, suspended from cranes, after months of unrest.
Iranians got the message.
As supreme leader, Khamenei's word was law. He inherited enormous powers, including command of the armed forces and the authority to appoint many senior figures, among them the heads of the judiciary, security agencies and state radio and television.
He appointed allies as commanders of the elite Revolutionary Guards.
As the final authority in Iran's complex system of clerical rule and limited democracy, Khamenei long sought to ensure that no group, even among his closest allies, mustered enough power to challenge him and his anti-U.S. stance.
Scholars outside Iran painted a picture of a secretive ideologue fearful of betrayal - an anxiety fuelled by an assassination attempt in 1981 that paralysed his right arm.
International organisations and activists repeatedly criticised violations of human rights in Iran. Tehran said it had the best human rights record in the Muslim world.
Ali Khamenei was born in Mashhad, northeast Iran, in April 1939. His religious commitment was clear when he became a cleric at the age of 11. He studied in Iraq and in Qom, Iran's religious capital.
His father, a religious scholar of ethnic Azeri descent, was a traditionalist cleric opposed to mixing religion and politics. In contrast, his son embraced the Islamist revolutionary cause.
"He (Khamenei's father) came across as a modernist or progressive cleric," said Mahmoud Moradkhani, a nephew who opposes Khamenei's rule and lives in exile. Unlike his son, "he was not a part of the fundamentalists", Moradkhani said.
In 1963, Khamenei served the first of many terms in prison when at 24 he was detained for political activities. Later that year he was imprisoned for 10 days in Mashhad, where he underwent severe torture, according to his official biography.
After the shah's fall, Khamenei took up several posts in the Islamic Republic. As deputy minister of defence, he became close to the military and was a key figure in the 1980-88 war with neighbouring Iraq, which claimed an estimated total of one million lives.
Khamenei’s leadership saw persistent Western sanctions, economic isolation, and significant impacts on Iran’s oil and shipping industries.
US withdrawal from the 2015 nuclear deal and Khamenei's hardline stance led to renewed sanctions targeting Iran’s key industries.
Khamenei maintained a consistently hostile approach to the US, blocking more open policies pursued by some elected Iranian leaders.
Explore more articles in the Finance category
