===Relations with the United States===
[[File:US Iran.gif|right|200|thumb|]]
The [[United States]] designated the [[Islamic Revolutionary Guard Corps]] (IRCG) and Quds Force as a Foreign Terrorist Organization (FTO) based on the IRGC’s “continued support to and engagement in terrorist activity around the world.”<ref>{{cite news |title=Country Reports on Terrorism 2019 |url=https://www.state.gov/wp-content/uploads/2020/06/Country-Reports-on-Terrorism-2019-2.pdf |agency=Country Reports}}</ref>
On November 4, 1979, militant Iranian students occupied the American Embassy in Tehran with the support of Ayatollah Khomeini. Fifty-two Americans were held hostage for 444 days, ending only with [[Ronald Reagan]]'s first days in office.<ref>[https://www.aei.org/foreign-and-defense-policy/middle-east/reagan-deserves-credit-for-1981-hostage-release/ Reagan deserves credit for 1981 hostage release], ''AEI'', Jan 27, 2016</ref> On April 7, 1980, the United States broke diplomatic relations with Iran, and on April 24, 1981, the Swiss Government assumed representation of U.S. interests in Tehran. Iranian interests in the United States are represented by the Government of Pakistan. The Islamic Republic of Iran does not have its own embassy in Washington, though it does have a permanent mission to the United Nations in New York City.