The Iran Hostage Crisis (1979–1981)

After months of protests against the rule of Mohammad Reza Shah Pahlavi, the Iranian army declared itself neutral and the monarchy collapsed. Ayatollah Ruhollah Khomeini returned from exile to lead an Islamic republic; the revolution repudiated the Shah's alliance with the United States, which many Iranians associated with the CIA-backed coup that had restored him to power in 1953.

Location: Iran

The Carter administration allowed the deposed Shah to enter the United States for medical treatment of lymphoma, over warnings that the move could jeopardize the embassy in Tehran. Iranian revolutionary leaders and student groups accused the United States of preparing another intervention, and mass demonstrations gathered outside the US embassy.

Location: New York, United States

Militant students calling themselves Muslim Student Followers of the Imam's Line seized the US embassy compound and took 66 Americans hostage, in violation of the diplomatic immunity guaranteed by international convention. Iran's stated demands included the return of the Shah for trial and the turnover of his wealth; Ayatollah Khomeini endorsed the takeover as a defense against the intervention Iranians feared, and the standoff became the defining confrontation of the revolution.

Location: Tehran, Iran

President Carter issued an executive order freezing roughly 12 billion USD in Iranian government assets held in the United States, the first major coercive measure in response to the seizure. The freeze became the central lever in the eventual negotiations and remained in place in various forms for decades.

Location: Washington, D.C., United States

Six American consular employees who had avoided capture sheltered for months in the residences of Canadian Ambassador Ken Taylor and another Canadian diplomat. With CIA-organized forged documents and Canadian passports authorized by the Canadian parliament, the six flew out of Tehran on 28 January 1980; the operation was kept secret until after its success.

Location: Tehran, Iran

After pursuing the case at the UN Security Council and the International Court of Justice, the United States severed diplomatic relations with Iran and imposed a trade embargo. The International Court of Justice had called unanimously for the hostages' release; diplomatic ties between the two countries were not restored for more than three decades.

Location: Washington, D.C., United States

A US military rescue mission, Operation Eagle Claw, was aborted in the Iranian desert after mechanical failures and a collision killed eight servicemen and destroyed aircraft. The failure damaged the Carter administration's standing, prompted a reorganization of US special operations forces, and strengthened Iran's negotiating position in the standoff.

Location: Eastern Iran

Mohammad Reza Shah Pahlavi died of cancer in Cairo, removing the figure whose extradition the students had originally demanded. The stated condition for the hostages' release could no longer be met, and negotiations turned to the frozen assets and US non-interference guarantees.

Location: Cairo, Egypt

After months of negotiations mediated by Algeria, Iran and the United States signed the Algiers Accords. Iran agreed to release the hostages in exchange for the unfreezing of its assets, the lifting of some sanctions, a US pledge of non-interference in Iranian affairs, and the creation of an Iran-United States Claims Tribunal at The Hague to settle bilateral claims.

Location: Algiers, Algeria

Minutes after Ronald Reagan was sworn in as president, the 52 hostages were released to US officials after 444 days in captivity. Iran's parliament had delayed approval of the accords until the final hours of the Carter presidency; the timing fueled later allegations of a secret pre-election deal, which congressional investigations examined and found no credible evidence to support.

Location: Tehran, Iran