 Iran–United States relations after 1979

Iran–United States relations have been characterized by tension and hostility since the Iranian Revolution of 1979, which resulted in the overthrow of the Shah, Mohammad Reza Pahlavi, and the establishment of the Islamic Republic under Ayatollah Khomeini. Below are key events and aspects that define this complex relationship after 1979: 1. **Hostage Crisis (1979-1981)**: Shortly after the revolution, Iranian students seized the U.S.