The Fatwa and Its Limits
In 2003, Khamenei issued a fatwa — a religious edict — forbidding the production and use of nuclear weapons. That decree has been a cornerstone of Iran’s public position that its nuclear program is peaceful. Western intelligence agencies have questioned whether the fatwa is truly binding, suggesting it may be a tactical statement rather than an immutable religious prohibition. The March 2025 order to enrich to 60% effectively overrides the spirit of that edict, in the view of Western analysts. The fatwa had been on the books for more than two decades, but the Supreme Leader’s directive puts Iran operating at enrichment levels that very few other nations reach.
Natanz, where enrichment will resume, is Iran’s primary enrichment site. It has been the focus of international inspections and, at times, sabotage operations. Resuming enrichment there to 60% is not a symbolic gesture; it is a concrete, verifiable step that changes the technical reality of Iran’s nuclear program. The timing matters because Khamenei retains the final say on all strategic nuclear decisions. His recent move signals that the long-standing dispute over Iran’s nuclear ambitions has entered a new phase.
A Life in Iranian Politics
Khamenei rose from a seminary student in Qom to become the second Supreme Leader of Iran. He was a close ally of Ruhollah Khomeini during the 1979 Islamic Revolution, which established the current theocratic system. Shortly after the revolution succeeded, Khamenei survived an assassination attempt that permanently paralyzed his right arm. He served as Iran’s president throughout the Iran-Iraq War, a conflict that forged his deep ties with the Islamic Revolutionary Guard Corps. When Khomeini died, the constitution was amended to allow a mid-ranking cleric to hold the post, and Khamenei was elected Supreme Leader by the Assembly of Experts.
As Supreme Leader, he is head of state with final say over foreign policy and nuclear matters. He has held the position for more than three decades, making him the longest-serving head of state in West Asia before his death in 2026. His rule has been marked by a consistent push to expand Iran’s regional influence through support for allied militias and governments, and by a campaign to privatize state industries and turn Iran into a major energy exporter.
Sanctions and the Road Ahead
Khamenei has been under U.S. sanctions since 2019. That means his assets in the American financial system are frozen, and U.S. persons are generally prohibited from doing business with him. The sanctions are part of a broader pressure campaign targeting the Iranian leadership. What to watch next: whether Iran follows through on Khamenei’s stated plan, and how the Trump administration responds. The Supreme Leader has final say, and he has now publicly committed to a course that the U.S. has long redlined. The next moves from both Tehran and Washington will determine whether this remains a diplomatic standoff or escalates into something more serious.
The practical upshot is that Iran is now operating at enrichment levels that place it in a category with very few other nations, and the Supreme Leader himself ordered it. Western intelligence agencies have publicly doubted whether Khamenei’s 2003 religious edict is truly binding. That question matters now because the Supreme Leader retains the ultimate authority, and his recent directive has brought the Islamic Republic back on a collision course with the West.
