The Iranian hostage crisis was a pivotal moment in Iran-United States relations that signified the end of America's influence in the country and the consolidation of an Islamist anti-American movement. It established the Ayatollah Ruhollah Khomeini as a powerful leader and significantly weakened the foreign policy of President Jimmy Carter. The incident also served as a flash point for hostility between the two countries that lasted for decades.
The hostage crisis and its aftermath had a major effect on the American political landscape as well. The Carter administration planned Operation Eagle Claw to rescue the American hostages using a fleet of helicopters. However, when the forces attempted to rendezvous in the desert, a freak sandstorm, mechanical failures and accidents caused the commanders to call off the mission. The incident embarrassed the Carter administration and further strengthened Khomeini, who attributed it to divine intervention.
After Iraq invaded Iran in 1980, Iran became more receptive to a negotiated solution to the crisis. Throughout the summer, both sides attempted to find common ground. Eventually Iran agreed to release the hostages in exchange for the unfreezing of Iranian assets and a promise not to interfere in the country's political future. Ronald Reagan won the presidential election that year, partially due to his promise not to negotiate with Iran. However, the timing of the hostages' release, set to coincide with Reagan's inauguration to give him the "credit" for their return, has spurred conspiracy theories about his campaign's involvement in the negotiations.