Yitzhak Rabin operations during Israel's War of Independence. He joined the newly formed Israel Defense Forces in late 1948 and continued to rise as a promising officer. He helped shape the training doctrine of the IDF in the early 1950s, and led the IDF's Operations Directorate from 1959 to 1963. He was appointed Chief of the General Staff in 1964 and oversaw Israel's victory in the 1967 Six-Day War. Rabin served as Israel's ambassador to the United States from 1968 to 1973, during a period of deepening U.S.–Israel ties. He was appointed Prime Minister of Israel in 1974, after the resignation of
Prime Minister of Iran Prime minister of Iran in 1965 and remained in office until 1977. Shapour Bakhtiar was the last prime minister of Pahlavi era. After the Iranian Revolution of 1979, Ayatollah Khomeini installed Mehdi Bazargan as the Prime Minister of an interim government, which served until November 1979. The government resigned during the Iran hostage crisis, but mentioned that it has not been the sole reason, and the decision for mass resignation had been reached one day before the invasion of the United States embassy by the Iranian students. The post was left empty until Abolhassan Banisadr became president in January 1980