1953 Iranian coup d'état

1953 Iranian coup d'état
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Conflict	1953 Iranian coup d'état
Partof	the Cold War and the Abadan Crisis
Date	15–19 August 1953
Place	Tehran, Pahlavi Iran
Result	Coup d'état successful, Mohammad Mosaddegh government overthrown, Mohammad Reza Pahlavi's monarchy consolidated, Fazlollah Zahedi installed as Prime Minister
Combatant1	Imperial State of Iran, • National Front, • Supporters of Mohammad Mosaddegh, • Tudeh Party of Iran
Combatant2	Pro-Shah forces, • Imperial Iranian Army factions, • Imperial Guard, Supported by:, • CIA, • SIS (MI6)
Commander1	Mohammad Mosaddegh, Hossein Fatemi
Commander2	Mohammad Reza Pahlavi, Fazlollah Zahedi, Kermit Roosevelt Jr., Norman Schwarzkopf Sr.

1953 Iranian coup d'état. The 1953 Iranian coup d'état, known internally as the 28 Mordad coup, was the overthrow of the democratically elected Prime Minister Mohammad Mosaddegh in favor of strengthening the monarchical rule of Mohammad Reza Pahlavi. Orchestrated by the United States' CIA and the United Kingdom' SIS, the operation marked a pivotal moment in Iran's modern history and the global Cold War. The coup solidified the Shah's autocratic power for the next 26 years but engendered lasting resentment toward the United States and is considered a primary cause of the Iranian Revolution of 1979.

Background and causes

The roots of the coup lay in the nationalization of the Anglo-Iranian Oil Company (AIOC) championed by Mohammad Mosaddegh and his National Front in 1951. This act directly challenged British economic and geopolitical interests, leading to the Abadan Crisis and a devastating Royal Navy blockade. The United Kingdom, under Prime Minister Winston Churchill, sought to reverse nationalization and viewed Mosaddegh as a destabilizing force. Concurrently, the Cold War context amplified Western fears, as the Tudeh Party of Iran's influence and perceived vulnerability to Soviet encroachment made Mosaddegh's government appear unreliable to Washington. Domestically, Mosaddegh's increasing reliance on emergency powers alienated former allies, including the religious establishment and figures like Ayatollah Abol-Ghasem Kashani, creating a fractured political landscape ripe for intervention.

Planning and foreign involvement

Planning for the covert operation, codenamed Operation Ajax (or Operation Boot by the British), was a joint venture between the CIA and the SIS. Key American architects included Allen Dulles and Kermit Roosevelt Jr., who directed the field operation, while British intelligence involved figures like Christopher Montague Woodhouse. The plan involved a sophisticated propaganda campaign through hired press and agents, funding opposition groups, and organizing street protests to create an atmosphere of chaos. Critical to the plot was securing the cooperation of the Shah to issue royal decrees (firmans) dismissing Mosaddegh and appointing the pro-Western general Fazlollah Zahedi as prime minister. The State Department and the Eisenhower administration, persuaded by arguments from Secretary of State John Foster Dulles, ultimately authorized the operation after the previous Truman administration had been more hesitant.

The coup

The initial coup attempt on 15 August 1953 failed when military officers loyal to the Shah, led by Colonel Nematollah Nassiri, were arrested after attempting to serve Mosaddegh's dismissal decree. Mohammad Reza Pahlavi fled to Baghdad and then Rome. In response, Kermit Roosevelt Jr. and his network activated their assets, using CIA funds to hire mobs from Tehran's bazaar and athletic clubs, portraying them as pro-Shah and anti-communist demonstrators. From 17–19 August, these crowds, alongside key military units like the Imperial Guard and troops from the Zahidan garrison commanded by General Zahidi, clashed with supporters of Mosaddegh and the Tudeh Party of Iran. After fierce fighting around key sites including Mosaddegh's residence and the radio station, the pro-coup forces prevailed. Mosaddegh surrendered, was arrested, and Fazlollah Zahedi was installed as the new prime minister.

Aftermath and immediate consequences

In the immediate aftermath, Mohammad Reza Pahlavi returned to Tehran and embarked on consolidating absolute power. A wave of repression followed, with the execution of Mosaddegh's foreign minister, Hossein Fatemi, and the imprisonment of thousands of members of the National Front and the Tudeh Party of Iran. The new government quickly moved to resolve the oil dispute, culminating in the formation of an international consortium through the 1954 Iranian oil agreement, which restored significant control to Western companies, though NIOC retained formal ownership. Domestically, the coup effectively dismantled Iran's fragile constitutional democracy, paving the way for the Shah's autocratic rule, which would later be enforced by his secret police, SAVAK.

Legacy and historical assessment

The long-term legacy of the coup is profound and widely seen as a critical turning point. It is cited as a principal catalyst for the anti-American sentiment that fueled the Iranian Revolution in 1979 and the subsequent rise of the Islamic Republic under Ruhollah Khomeini. For the United States and the United Kingdom, the operation became a model for Cold War covert intervention but is now often critically assessed as a short-term strategic victory that generated long-term blowback. The CIA's internal history of Operation Ajax, first published in 2000, acknowledged the agency's central role. Historians debate the coup's inevitability, but it remains a defining episode in Iran–United States relations and a symbol of Western intervention in the Middle East.

Category:1953 in Iran Category:Cold War conflicts Category:Coups d'état in Asia Category:History of Iran