Since the 1979 Islamic Revolution, the clerical regime in Tehran and its proxies have committed a range of attacks against Americans.

The countries were united by weapons and oil until the 1979 Islamic revolution tore their friendship apart.

The move comes seven months after the establishment of the Islamic Republic of Iran. Some 52 hostages are held for 444 days. In April 1980, Washington breaks off diplomatic relations with Iran and imposes restrictions on commerce and travel. Nine months later, the last hostages are released.