The Mossadegh Coup and Its Legacy

The Oil Nationalization Crisis

In 1951, Iran's democratically elected Prime Minister Mohammad Mossadegh nationalized the Anglo-Iranian Oil Company (AIOC), the British-controlled firm that had dominated Iran's petroleum industry since 1913. The AIOC's terms were staggeringly lopsided: Iran received roughly 16% of profits from its own oil, while Britain took the rest. Iranian workers lived in slums while British employees enjoyed manicured compounds. When Mossadegh's government demanded a 50-50 profit split — the same terms Saudi Arabia had recently negotiated with Aramco — the British refused.

Nationalization was wildly popular in Iran. Mossadegh, a Swiss-educated lawyer and longtime parliamentarian, became a national hero. But Britain responded with a devastating economic blockade, using the Royal Navy to prevent any country from purchasing Iranian oil. The blockade strangled Iran's economy. Britain then lobbied Washington to intervene, framing Mossadegh not as a nationalist democrat but as a dangerous figure who might drift toward the Soviet Union — a potent argument in the early Cold War.

Operation Ajax (1953)

The Eisenhower administration, convinced by British arguments and its own Cold War anxieties, authorized the CIA to overthrow Mossadegh. The operation — codenamed TPAJAX by the CIA and Operation Boot by MI6 — was led by CIA officer Kermit Roosevelt Jr., grandson of Theodore Roosevelt.

The initial coup attempt on August 15, 1953, failed. The Shah, Mohammad Reza Pahlavi, who had signed the decree dismissing Mossadegh, fled to Rome. But the CIA regrouped, paying mobs to stage street protests, bribing military officers, and orchestrating chaos. On August 19, a second attempt succeeded. Military units loyal to the Shah seized key buildings, and Mossadegh was arrested. The Shah returned triumphantly.

Mossadegh was tried by a military tribunal and sentenced to three years in prison, followed by house arrest until his death in 1967. The Shah consolidated power, eventually establishing a dictatorship backed by SAVAK, his feared secret police trained with CIA assistance. A new oil consortium was established that gave American companies 40% of Iranian oil — the real prize Washington had sought.

The Long Shadow

The 1953 coup is arguably the single most important event in understanding why Iran distrusts the United States. For Americans, it was a Cold War footnote largely forgotten until journalists and historians unearthed the details decades later. For Iranians, it was a formative national trauma — proof that the United States would destroy democracy in Iran to control its resources.

The coup's consequences cascaded across decades. The Shah's authoritarian rule, enabled by Washington, created the conditions for the 1979 Islamic Revolution. When revolutionary students seized the US embassy and took 52 Americans hostage, they explicitly cited the 1953 coup as justification — they feared the embassy was planning another one. In 2000, Secretary of State Madeleine Albright acknowledged the US role, calling the coup a 'setback for democratic government.' In 2013, the CIA formally acknowledged its involvement when declassified documents were released.

The episode remains a cornerstone of Iranian political identity. Both reformists and hardliners invoke Mossadegh — reformists as proof that Iran has a democratic tradition, hardliners as proof that the West will always seek to dominate Iran. Any serious attempt to repair US-Iran relations must grapple with this history.