America's Vengeance: From Carter to Khamenei and the future

Iranian state media announced forty days of national mourning, portraying its late Supreme Leader as a martyr who defended the Islamic Republic against foreign aggression after America, in coordinated attacks with Israel, killed Ayatollah Ali Khamenei on Saturday, February 28, in Tehran.

President Masoud Pezeshkian framed retaliation as both a national duty and a moral imperative, promising responses that would extend beyond Iran’s borders. In Tehran and other major cities, crowds chanted slogans of resistance while state broadcasters aired continuous recitations of the Quran. Commanders of the Islamic Revolutionary Guard Corps, whose influence grew steadily under Khamenei, vowed that retaliation would stretch far beyond Iran, signaling consolidation of domestic power and a recalibration of regional strategy. 

In the immediate aftermath, Tehran announced the formation of a three-member transitional council composed of Alireza Arafi, President Pezeshkian, and Supreme Court Chief Justice Gholam Hossein Mohseni Ejei. This temporary governance body blends religious, executive, and judicial authority and is designed to maintain continuity amid an unprecedented leadership vacuum. The death of Ahmadinejad, alongside several of his bodyguards, removes a former president whose confrontational rhetoric intensified sanctions and international isolation. These losses create a leadership void that thins the generation of officials who guided Iran’s revolutionary and regional strategy for decades, forcing both domestic and foreign observers to reconsider the balance of power in Tehran. 

The roots of U.S.-Iranian tension stretch back well before 1979. Centuries of foreign interventions, beginning with British and Russian influence in the nineteenth century, fostered deep suspicion of external involvement. The 1953 CIA and MI6-backed coup against Prime Minister Mohammad Mossadegh, who nationalised Iran’s oil industry, reinforced the narrative that foreign powers threatened Iranian sovereignty. The reinstatement of Shah Mohammad Reza Pahlavi, supported by Washington and London as an anti-communist bulwark, heightened frustration with authoritarian rule and inequality. By 1979, revolutionary fervor erupted, bringing Ayatollah Ruhollah Musavi Khomeini to power and merging religious authority with political control. The seizure of the U.S. Embassy, which held fifty-two Americans for 444 days, became an iconic assertion of Iranian independence. The failed Operation Eagle Claw in April 1980, when aircraft collided in the desert and killed American servicemen, demonstrated the limits of military power against ideological resolve and shaped American foreign policy for decades. The hostage crisis also contributed to the defeat of President Jimmy Carter in the 1980 election, providing Ronald Reagan an opportunity to campaign on restoring American strength and ending the humiliation of U.S. captives. 

After Khomeini died in 1989, Ayatollah Ali Khamenei assumed the role of Supreme Leader, consolidating religious, political, and military authority. Under his leadership, the Islamic Revolutionary Guard Corps evolved into both an internal security force and a regional influence network, supporting proxies such as Hezbollah in Lebanon and militias in Iraq, Syria, and Yemen. Hezbollah, or the Party of God, under Hassan Nasrallah, whose name means God’s help, became a disciplined political movement and formidable military force. Nasrallah, assassinated on 27th September 2024, led Hezbollah in operations that extended Iran’s reach and challenged Israeli and Western interests. Qasem Soleimani, commander of the Quds Force until his assassination in 2020, coordinated Iran’s networks across multiple countries. The removal of Nasrallah, Soleimani, Khamenei, and Ahmadinejad dismantles the generation that defined Iran’s regional strategy and tests the resilience of Tehran’s foreign policy apparatus. 

Ali Akbar Hashemi Rafsanjani, president from 1989 to 1997, played a key role in post-Khomeini reconstruction, balancing pragmatic economic policies with the revolutionary ethos. Rafsanjani nurtured relationships with both Gulf neighbors and European states, stabilising Iran’s domestic institutions while promoting regional influence through strategic alliances. His death in 2017 removed a key moderating voice, leaving the hardline factions, particularly the Guard, to dominate strategic decisions. 

Then came Mohammad Khatami, whose language of dialogue among civilizations briefly softened Iran’s international image. Students, intellectuals, and reformists imagined a more open society. Yet entrenched institutions resisted change. The Guard, the clerical establishment, and conservative courts limited every reform. His presidency demonstrated that in the Islamic Republic, elected power remains subordinate to unelected authority. Hope confronted structure, and structure prevailed. 

That structure hardened during the presidency of Mahmoud Ahmadinejad. His confrontational rhetoric, denial of the Holocaust, and defiance over uranium enrichment intensified sanctions and isolation. Ahmadinejad projected populism at home and defiance abroad, accelerating Iran’s image as an ideological challenger to Western dominance. Sanctions multiplied. Inflation soared. Yet domestically, he cultivated the narrative of resistance, convincing many that economic suffering was the price of sovereignty. 

Iran’s nuclear program remains a persistent flashpoint. Facilities at Natanz and Fordow operate advanced centrifuges. Tehran asserts peaceful purposes while Western intelligence warns of a short path to weapons-grade material. Targeted assassinations of Iranian nuclear scientists, widely attributed to Israeli intelligence, illustrate the high stakes of the program and the enduring tension between deterrence, coercion, and diplomacy. In 2015, the Joint Comprehensive Plan of Action limited nuclear activity in exchange for sanctions relief. The agreement collapsed in 2018 when President Donald Trump withdrew from it and reinstated heavy sanctions, returning relations to open hostility. That same year, Prime Minister Benjamin Netanyahu declared at the United Nations General Assembly that Iran had crossed the red line in its uranium enrichment program, using a visual diagram to illustrate the threshold beyond which nuclear weapons could be rapidly produced. This speech clarified Israel’s view that diplomatic engagement had failed and that preemptive measures were justified to prevent existential threats. It was indeed an act of giving a dog a bad name with deliberate intentions to hang it. 

The legality of such targeted killings remains contested. The United Nations Charter restricts the use of force against sovereign states except in cases of self-defense or Security Council authorization. Critics argue that unilateral strikes violate these principles, while supporters claim imminent threats justify preemptive action. Emergency sessions of the United Nations Security Council highlighted tensions between established norms and strategic imperatives, with China, Russia, and European states urging restraint to prevent wider conflict. For the United States and Israel, the attacks are framed as necessary to constrain Iran’s nuclear ambitions and protect allies. 

Within Iran, the deaths of Khamenei and Iran's top brass military personnel create unprecedented uncertainty. The Assembly of Experts faces the extraordinary task of selecting a new Supreme Leader capable of maintaining legitimacy while managing internal factions. Potential successors range from conservative hardliners to pragmatic moderates, each with distinct visions for governance and regional engagement. The Guard is likely to consolidate its influence further, dominating political and economic decision-making. Widespread public dissatisfaction over economic hardship, inflation, and political repression adds volatility, complicating prospects for a stable transition. 

Regionally, Iran’s network of proxies across Lebanon, Iraq, Syria, Yemen, and beyond may respond asymmetrically, compensating for leadership losses and maintaining strategic influence. Attacks on U.S. and allied positions could trigger cycles of escalation reminiscent of the 2020 killing of Soleimani. Energy markets face potential disruption since Iran controls critical oil routes, including parts of the Strait of Hormuz through which roughly 20 per cent of seaborne petroleum passes. Any disruption to exports or retaliatory strikes affecting infrastructure could trigger worldwide economic reverberations. 

Historically, U.S.-Iran relations have moved in cycles of confrontation, retaliation, and uneasy pause. Key milestones from the 1953 Mossadegh coup to the 1979 revolution and embassy hostage crisis, Khomeini’s death in 1989, Nasrallah’s rise in 1992, Ahmadinejad’s presidency from 2005 to 2013, the 2015 nuclear agreement, its collapse in 2018, and the 2020 killing of Soleimani reflect a consistent pattern: ambition, fear, and mistrust outlive individual leaders. The 2026 strikes continue this trajectory, removing the leadership that defined the revolutionary generation and forcing Tehran and its adversaries to reassess regional strategy. 

From 1953 through the 1979 revolution, proxy conflicts, nuclear negotiations, and high-profile assassinations, U.S.-Iran relations have consistently reflected cycles of confrontation and retaliation. The transitional council may stabilize governance temporarily, but internal fractures, regional pressures, and enduring grievances make a return to equilibrium uncertain. Globally, these events highlight the fragility of Middle Eastern stability, the volatility of energy markets, and the persistent interplay of history, ideology, and geopolitics. Iran’s future and the broader regional balance will be determined not by ceremony but by strategy, law, public sentiment, and the long shadow of decades of U.S.-Iran confrontation.