Iran-Israel relations
Overview
 
Iran–Israel relations have shifted from close ties between Israel
Israel
The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...

 and Iran
Iran
Iran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...

  during the era of the Pahlavi dynasty
Pahlavi dynasty
The Pahlavi dynasty consisted of two Iranian/Persian monarchs, father and son Reza Shah Pahlavi and Mohammad Reza Shah Pahlavi The Pahlavi dynasty consisted of two Iranian/Persian monarchs, father and son Reza Shah Pahlavi (reg. 1925–1941) and Mohammad Reza Shah Pahlavi The Pahlavi dynasty ...

 to hostility since the Islamic Revolution
Iranian Revolution
The Iranian Revolution refers to events involving the overthrow of Iran's monarchy under Shah Mohammad Reza Pahlavi and its replacement with an Islamic republic under Ayatollah Ruhollah Khomeini, the leader of the...

 led by Ayatollah Ruhollah Khomeini
Ruhollah Khomeini
Grand Ayatollah Sayyed Ruhollah Musavi Khomeini was an Iranian religious leader and politician, and leader of the 1979 Iranian Revolution which saw the overthrow of Mohammad Reza Pahlavi, the Shah of Iran...

. Iran has severed all diplomatic and commercial ties with Israel, and its government does not recognize Israel
Israel
The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...

 as a country and refers to its government as the "Zionist regime"
Zionist entity
Zionist entity is a phrase often used by Arabs and Muslims as a pejorative for the State of Israel. The term is described as a means of expressing hostility towards Israel, refusing to acknowledge its existence as a state, and denying its right to exist. Virginia Q...

. The land is referred to by Iran
Iran
Iran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...

 as "Occupied territories".

Due to recent rhetoric
Rhetoric
Rhetoric is the art of discourse, an art that aims to improve the facility of speakers or writers who attempt to inform, persuade, or motivate particular audiences in specific situations. As a subject of formal study and a productive civic practice, rhetoric has played a central role in the Western...

 between Iran and Israel, development of nuclear technology
Nuclear program of Iran
The nuclear program of Iran was launched in the 1950s with the help of the United States as part of the Atoms for Peace program. The support, encouragement and participation of the United States and Western European governments in Iran's nuclear program continued until the 1979 Iranian Revolution...

, and funding of the groups Hamas
Hamas
Hamas is the Palestinian Sunni Islamic or Islamist political party that governs the Gaza Strip. Hamas also has a military wing, the Izz ad-Din al-Qassam Brigades...

 and Hezbollah, tensions have risen between the State of Israel and the Islamic Republic of Iran, especially after the election
Iranian presidential election, 2005
Iran's ninth presidential election took place in two rounds, the first on June 17, 2005, the run-off on June 24. Mohammad Khatami, the previous President of Iran, stepped down on August 2, 2005, after serving his maximum two consecutive four-year terms according to the Islamic Republic's constitution...

 of the hardline Mahmoud Ahmadinejad in 2005.
The beginnings of Jewish history in Iran
Iran
Iran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...

 date back to late Biblical times.
 
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