On 2 March 2026 Iran’s Supreme Leader Ayatollah Ali Khamenei was killed, prompting a coordinated US‑Israeli air campaign. While senior US officials, including Donald Trump , voiced hopes of regime change, intelligence assessments remain skeptical about any immediate top‑down collapse. Key Developments US and Israeli strikes targeted Iran’s military infrastructure, including a reported bombing of a girls’ primary school. President Trump urged Iranians to "seize this moment" via a Truth Social video. Iranian President Masoud Pezeshkian announced a temporary leadership council comprising the president, the head of the judiciary and a member of the Guardian Council . US intelligence agencies, notably the CIA , warned that hard‑line figures from the IRGC or senior clerics could quickly fill the vacuum. Important Facts • No significant defections from the IRGC were recorded during the massive January protests, a pre‑condition for a successful revolution according to US sources. • CIA assessments, shared with the White House weeks before the attack, concluded that Khamenei’s death would likely be followed by a hard‑line successor rather than a liberal reformist. • US officials remain divided on whether the leader’s removal would alter Iran’s stance on its ballistic missile program and nuclear program . UPSC Relevance The episode illustrates the interplay of foreign policy, security dynamics, and internal political structures —core topics for GS 2 (Polity) and GS 3 (International Relations). Aspirants should note: How the death of a pivotal leader can test the resilience of authoritarian institutions. The role of elite security organs ( IRGC ) in preserving regime continuity. US strategic calculus in using targeted strikes to achieve broader geopolitical objectives (regime change, missile and nuclear denuclearisation). Way Forward Analysts suggest that any lasting change in Iran will depend on: Whether internal factions—especially the rank‑and‑file of the security apparatus—defect or remain loyal. The ability of opposition figures (e.g., ex‑royal Reza Pahlavi ) to garner mass support without external backing. International diplomatic pressure to curb Iran’s missile and nuclear ambitions while offering a credible political settlement. Until these conditions materialise, the US‑Israeli operation is unlikely to produce immediate regime change, and Iran’s strategic programmes are expected to persist.