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Military appointments in authoritarian states, particularly during wartime, reveal priorities, threat perceptions, institutional loyalties and leadership fears. The new military and security hierarchy under Iran’s Supreme Leader Mojtaba Khamenei should therefore be read as more than the reconstruction of a command structure damaged by war.
It is an order of battle with two purposes: confronting the United States and Israel abroad and preserving the Islamic Republic against instability at home. Those elevated are not a postwar generation seeking accommodation with Iran’s adversaries, but veterans of the revolutionary-security establishment, formed through war, intelligence operations, ideological conflict, asymmetric warfare and domestic coercion.
Claims that leadership decapitation has produced meaningful regime change in Tehran should be treated with caution. Commanders have died, offices changed hands and a new supreme leader replaced the old one, but regime change is not the replacement of individuals. It requires transformation of the institutions, ideology, strategic objectives and political relationships defining a governing order.
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By those measures, the Islamic Republic has not disappeared. Tehran is reaching backward to men whose careers were forged in institutions that spent decades confronting Washington and Jerusalem while protecting the regime at home.
Ahmad Vahidi, commander of the Islamic Revolutionary Guard Corps Quds Force, Esmail Qaani, and Iraj Masjedi, Deputy Coordinator of the Islamic Revolutionary Guard Corps (IRGC) Quds Force, participate in a ceremony to mark the memory of former IRGC commander, Hossein Salami, who is killed in Israeli attacks, at a mosque in an IRGC organizational house complex in Tehran, Iran, July 25, 2025. (Photo by Morteza Nikoubazl/Nur Photo via Getty Images)
Ali Abdollahi, the new chief of the General Staff, belongs to the revolutionary-security generation that emerged with the Islamic Republic, joining the Revolutionary Committees after 1979 and later the Islamic Revolutionary Guard Corps (IRGC). His appointment signals institutional continuity rather than generational renewal.
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Kiumars Heydari, now deputy chief of the General Staff, described the Army Ground Forces’ suppression of the November 2019 protests as a “proud” mission and dismissed 2022 protesters as “flies.” Such rhetoric from the traditionally less ideological Artesh, or Iranian army, further blurs the distinction between defending Iran and defending the Islamic Republic.
The appointment of Ahmad Vahidi to command the IRGC is particularly consequential for the United States and Israel. Vahidi emerged from the Islamic Republic’s intelligence and external-operations apparatus that evolved into the Quds Force. Argentine prosecutors have accused him of involvement in the 1994 bombing of the AMIA Jewish community center in Buenos Aires, which killed 85 people, and Interpol issued a Red Notice concerning him.
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These are accusations rather than a criminal conviction, but his trajectory is instructive. The regime has entrusted its most important revolutionary military institution to a commander experienced in intelligence, irregular warfare, extraterritorial operations and the strategic culture through which Tehran has confronted adversaries beyond Iran’s borders.
For American defense planners, Vahidi’s elevation should be interpreted institutionally rather than biographically. The IRGC has spent decades challenging stronger conventional opponents through proxies, missiles, drones, covert networks, maritime pressure, intelligence operations and asymmetric warfare, allowing Tehran to impose costs while managing escalation.
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Its confrontation with the United States has included support for armed groups Washington has held responsible for American military deaths. Elevating veterans formed in this strategic culture hardly suggests its abandonment. Instead, Tehran appears to expect confrontation with the United States and Israel to remain central to its security environment.
Hossein Taeb’s return to command the Basij, or paramilitary force, completes the other half of this architecture. He has served across the IRGC, Ministry of Intelligence, counterintelligence and the Guards’ intelligence apparatus. The United States sanctioned him in 2010 for serious human-rights abuses, while the European Union later imposed measures connected to violations of Iranian citizens’ rights.
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The Basij reaches into universities, workplaces, neighborhoods, schools, government institutions and social organizations, providing ideological mobilization, surveillance, intimidation and a mechanism for suppressing unrest. Putting a veteran intelligence operator back in charge signals how seriously the regime views its domestic security environment.
Together, Vahidi and Taeb reveal the logic of the new hierarchy. One represents decades of confronting enemies abroad; the other embodies the machinery for identifying and suppressing threats at home. The arrangement reflects a regime that sees external war and internal instability as interconnected fronts. Military setbacks can weaken its mythology of strength, intelligence penetration can expose elite vulnerabilities, and economic deterioration can fuel protest and security fractures. From Tehran’s perspective, an Israeli strike, an American military threat, an intelligence breach and an Iranian protest movement may become manifestations of the same existential danger: loss of political control.
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This convergence has implications for future Iranian behavior. A leadership facing existential threats from foreign adversaries and domestic opposition is unlikely to moderate after military losses. Weak authoritarian systems can instead become more aggressive abroad and coercive at home, interpreting compromise as vulnerability. Iran’s new hierarchy may therefore support renewed asymmetric pressure against American and Israeli interests through regional networks, maritime coercion, missiles, drones and intelligence operations.
The Islamic Caliphate’s stubbornness should not be underestimated. Despite serious military and intelligence shocks, it has replaced commanders and preserved a functioning chain of command. But resilience is not vitality. Nearly half a century after the revolution, Tehran still relies on the same aging revolutionary-security class for experienced and loyal commanders. Its trusted leadership pool appears increasingly narrow: a confident military develops a new generation; an insecure barbaric revolutionary order summons veterans of its past.
For Washington and Jerusalem, this distinction matters. Strategic success cannot be measured simply by the number or seniority of commanders removed. If the institutions producing hostile strategy remain intact, new commanders can inherit old missions. If the ideology defining the United States and Israel as permanent adversaries survives, personnel turnover can coexist with strategic continuity. And if the regime equates survival with demonstrating strength after humiliation, its new leadership may have powerful incentives to prove it can still impose costs on its enemies.
The central question for U.S. strategy is not simply who commands the IRGC, Basij or General Staff, but what system they are assembled to preserve. The answer is troubling: one that fuses revolutionary ideology with military power, intelligence operations with foreign policy and national security with regime survival. Tehran is rebuilding institutions used to confront the United States and Israel while strengthening those used to control Iranian society.
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This is the deeper meaning of the junta’s military reshuffle. The Islamic regime has not emerged from war as a fundamentally different political order. It is reorganizing for a period in which foreign confrontation and domestic insecurity may reinforce one another. The new hierarchy reflects a dual-front posture: security veterans facing the United States and Israel abroad, while intelligence and coercive institutions face the Iranian population at home.
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Washington and Jerusalem should not assume that damage inflicted on Tehran will produce moderation. A wounded regime led by veterans of revolutionary warfare, intelligence operations and repression may remain dangerous precisely because it sees the next phase as a struggle for survival. Iran’s old order has not vanished. It has put its boots back on.
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