How did the Iranian Revolution affect the relationship between the US and Iran?

https://en.wikipedia.org/wiki/Iran%E2%80%93United_States_relations

The Iranian Revolution, which took place in 1979, significantly impacted the relationship between the United States and Iran. To understand the effects, let's break it down step by step:

1. Understanding the Iranian Revolution: The revolution was a series of events that led to the overthrow of Iran's monarchy and the establishment of an Islamic Republic. It was fueled by deep-seated frustration with the leadership of Shah Mohammad Reza Pahlavi, who was seen as a dictator supported by the United States.

2. US-Iran Relationship pre-Revolution: Prior to the revolution, the US and Iran had a close relationship. The United States saw Iran as a key ally in the Middle East, given its strategic location and vast oil reserves. Both countries had close economic and military ties.

3. Revolution and Hostage Crisis: The revolution resulted in the rise of Ayatollah Ruhollah Khomeini and a shift to an anti-US stance. The grounds for animosity grew when a group of Iranian students seized the US embassy in Tehran in November 1979 and held American diplomats hostage for 444 days. This event, known as the Iran Hostage Crisis, severely strained bilateral relations.

4. Economic Sanctions: As a response to the hostage crisis, the US imposed economic sanctions on Iran, freezing Iranian assets and cutting off trade relations. These sanctions aimed to pressure Iran into releasing the hostages, but they remained in place even after the crisis ended. The sanctions further deteriorated diplomatic ties.

5. Support for Iraq-Iran War: During the Iran-Iraq War (1980-1988), the US provided support to Iraq, including intelligence information, arms, and financial aid. This was seen by Iran as US interference and support for its enemy, further deepening the rift.

6. Nuclear Program Dispute: In later years, the US became increasingly concerned about Iran's nuclear program, suspecting it was aimed at developing nuclear weapons. This led to further tensions and the implementation of more extensive sanctions and diplomatic efforts to curtail Iran's nuclear ambitions.

In summary, the Iranian Revolution led to strained relations between the US and Iran due to the hostage crisis, economic sanctions, support for Iraq during the Iran-Iraq War, and ongoing disputes over Iran's nuclear program.