On the morning of August 19, 1953, Iranian Prime Minister Mohammad Mosaddegh was placed under arrest at his home in Tehran. By evening, Shah Mohammad Reza Pahlavi, who had fled to Rome four days earlier believing the operation had failed, was back in power. The 1953 Iranian coup d’état took roughly 24 hours to execute. Its consequences took considerably longer to unfold. Seventy years on, the coup remains the single event most frequently cited by Iranians when explaining their distrust of the West, and the single event most frequently overlooked in Western accounts of why that distrust exists.
The Man the Coup Removed
Mohammad Mosaddegh was not a communist. This point is worth establishing early, because the Central Intelligence Agency spent considerable effort convincing itself and others that he was, or at minimum that his government would create conditions for a communist takeover. The argument was tendentious and the CIA’s own internal documentation eventually acknowledged as much.
Mosaddegh was a constitutional nationalist who had spent decades pushing for Iranian sovereignty over Iranian resources. His signature achievement, the nationalisation of the Anglo-Iranian Oil Company (AIOC) in 1951, was wildly popular in Iran and genuinely alarming in London. Britain had controlled Iranian oil since 1913. AIOC, which would later become BP, was paying Iran a royalty rate that left most of the revenue in British hands. Mosaddegh proposed to change that. The British government, with the enthusiastic assistance of the Churchill administration, proposed to change Mosaddegh instead.
How the 1953 Iranian Coup Was Planned
Britain’s MI6 had been working on removal scenarios for Mosaddegh almost from the moment of the nationalisation. The initial problem was that the Truman administration refused to participate, Secretary of State Dean Acheson found the British rationale unpersuasive and the approach distasteful. The Eisenhower administration, which took office in January 1953, proved more receptive. Secretary of State John Foster Dulles and CIA Director Allen Dulles, brothers who shared a firm belief in the utility of covert action, approved Operation Ajax on the American side. Britain’s parallel operation was called Boot.
The 1953 Iranian coup was not a clean military putschA sudden, violent attempt by a small group to seize control of a government, typically without broad popular support and often relying on military or paramilitary force.. It was an operation in chaos management. The first attempt, on August 15-16, failed badly. The Shah had given the operation’s Iranian military coordinator, General Fazlollah Zahedi, a royal decree dismissing Mosaddegh, but when it was delivered, the coup unravelled. Mosaddegh’s security services had been tipped off. Zahedi went into hiding. The Shah fled. CIA officer Kermit Roosevelt Jr., who was running the operation from Tehran, cabled headquarters that the mission had collapsed. CIA headquarters cabled back ordering him to stand down. Roosevelt ignored the cable and improvised.
What followed over the next three days involved paid street crowds, newspaper campaigns, clerics, and elements of the Iranian military, all mobilised with CIA funds and coordination. The crowds that appeared to be organically rejecting Mosaddegh were in significant part purchased. The newspaper accounts depicting him as a communist threat were planted. The 1953 Iranian coup succeeded on its second attempt because Roosevelt refused to acknowledge the first one had failed.
What the CIA Actually Said
For decades, the United States officially denied involvement in the 1953 Iranian coup. In 2013, the National Security Archive at George Washington University published a declassified CIA document, the agency’s own internal history of the operation, written in the late 1950s, which described the 1953 Iranian coup explicitly as “an act of U.S. foreign policy, conceived and approved at the highest levels of government.” The document had been partially released before; the 2013 version was the first unredacted version acknowledging the CIA’s central role without qualification.
The document is notable for several reasons, including its frank assessment of the operation’s improvised quality. It describes Roosevelt as having exceeded his authority, acknowledges the first attempt’s failure, and notes that the 1953 Iranian coup’s success was far from inevitable. It is, in effect, an internal after-action report from one of the most consequential covert operations of the twentieth century, written by the people who ran it, describing it with a candour that no public statement ever matched.
The Shah’s 26 Years
The restored Shah was not the same figure who had wobbled and fled. He interpreted the coup as evidence that foreign support could prop up his reign indefinitely, a reading that would prove catastrophically wrong 26 years later. His government became progressively more authoritarian through the 1960s and 1970s. SAVAK, the Iranian secret police established in 1957 with CIA and later Mossad assistance, became notorious for the torture and surveillance of political opponents.
Western governments, particularly the United States and Britain, were aware of SAVAK’s methods and continued their support. The argument was that the Shah was a reliable Cold War ally, a regional power with oil and a long border with the Soviet Union. The argument was not wrong on its own terms. It simply did not account for what those 26 years of authoritarian rule were building beneath the surface.
1979 and the Long Shadow of the 1953 Iranian Coup
When the revolution came in 1979, it came fast. The Shah left Iran in January; by February Ayatollah Ruhollah Khomeini had returned from exile and the Islamic Republic was declared. The revolution’s political character, its deep suspicion of the United States, its anti-imperialist framing, its rejection of a Western-backed modernisation programme, is not fully comprehensible without the 1953 Iranian coup as background.
The revolutionary slogan “America cannot do a damn thing” was not abstract anti-Americanism. It was a direct riposte to 1953, to the CIA, to the conviction that Iran’s sovereignty had been overridden once before by foreign power. The seizure of the US embassy in November 1979 and the 444-day hostage crisis was understood by its participants in explicitly historical terms: they were, in their own framing, reversing what had been done to Mosaddegh.
The 1953 Iranian coup is not the only cause of the 1979 revolution. Economic grievances, political repression, the Shah’s specific modernisation programme and its disruption of traditional structures, all of these contributed. But the coup is the foundation on which four decades of Iranian political identity toward the West was built. Remove it, and the narrative does not hold together the same way.
What Western Intelligence Services Got Wrong
The 1953 Iranian coup succeeded tactically. As a piece of strategic policy, it was a failure of the first order. The CIA removed a democratically elected leader because he had nationalised an oil company. In exchange, it got 26 years of a reliable ally and 70 years of structural hostility from the Iranian political class that replaced him.
The conceptual error was a familiar one: the assumption that the internal politics of a target country are primarily a function of external manipulation, and that replacing the leadership will reset the trajectory. What the CIA did not model was how the coup would be experienced, remembered, and transmitted by Iranians themselves, not as a distant geopolitical event but as an act of violation against Iranian sovereignty that defined the terms of every subsequent engagement with the West.
Understanding the 1953 Iranian coup does not require sympathy for the Islamic Republic, or agreement with Iranian foreign policy, or any particular political position on contemporary Iran-West relations. It requires only the recognition that history is experienced differently by those it happened to, and that the West’s failure to reckon with what the 1953 Iranian coup meant to Iranians has cost it decades of credibility it has never recovered.
Sources
- 1953 Iranian coup d’état, Wikipedia: comprehensive overview of the operation, its planning, execution, and aftermath, with extensive references to primary sources.
- U.S. State Department, Foreign Relations of the United States: Iran, 1951–1954: declassified FRUS volume covering the Mossadegh period and Operation TPAJAX, including primary source documents.
