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
Yitzhak Rabin withdrew from the party leadership and candidacy for prime minister. Following his resignation and Labour Party defeat at the elections, Likud's Menachem Begin was elected in 1977. Until 1984 Rabin had been a member of Knesset and had sat on the Foreign Affairs and Defense Committee. From 1984 to 1990, he served as Minister of Defense in several national unity governments led by prime ministers Yitzhak Shamir and Shimon Peres. When Rabin came to office, Israeli troops were still deep in Lebanon. Rabin ordered their withdrawal to a "Security Zone" on the Lebanese side of the border. The South Lebanon