The Israeli killing of Ali Larijani marks another blow to the Islamic Republic’s capacity for coordination, weakening an already fragmented system and raising the risk of miscalculation under pressure. Iran confirmed on Tuesday that Larijani—Secretary of the Supreme National Security Council and one of the regime’s central security coordinators— was killed in a morning strike on Tehran. The strike inevitably recalls the killing of Qassem Soleimani in 2020: another precise removal of a figure who linked diplomacy, intelligence and military power. Soleimani’s death did more than eliminate a commander. It weakened the regime’s ability to calibrate risk. Radical in purpose,...