•Ayatollah Ali Khamenei, 86, faces the most significant challenge of his 37-year tenure amidst a massive American military build-up and severe domestic crackdown.
•Khamenei dismisses Washington's 'massive armada' as intimidation, invoking Imam Hussein's spirit and warning of weapons capable of sinking warships.
•His 'revolutionary pragmatism' in nuclear talks rules out abandoning uranium enrichment or limiting ballistic missiles, viewing the nuclear project as an insurance policy.
•Recent reports suggest Khamenei approved compact nuclear warhead designs, shifting strategic 'red lines' despite a fatwa against WMDs.
•Domestically, he conflates dissent with foreign aggression, using the IRGC to suppress protests and framing the response as national survival.
