World reacts to killing of Iran’s Khamenei by US, Israel forces Several nations, global bodies and prominent groups respond to killing of Iran’s supreme leader, urging de-escalation.Share this: Analysis: Will Iran’s establishment collapse after the killing of Khamenei?DateMarch 1, 2026In relation toAl-JazeeraIran begins 40-day mourning after Khamenei killed in US-Israeli attackDateMarch 1, 2026In relation toAl-JazeeraWhich are Iran’s main opposition groups?DateJanuary 12, 2026In relation toAl-Jazeera