History of Egypt Yemen) known as the United Arab States. In the 1967 Six-Day War, Israel invaded and occupied Egypt's Sinai Peninsula and the Gaza Strip, which Egypt had occupied since the 1948 Arab–Israeli War. Three years later (1970), President Nasser died and was succeeded by Anwar Sadat. Sadat switched Egypt's Cold War allegiance from the Soviet Union to the United States, expelling Soviet advisors in 1972. He launched the Infitah economic reform policy, while clamping down on religious and secular opposition. In 1973, Egypt, along with Syria, launched the October War, a surprise attack against the Israeli forces occupying the Sinai Peninsula
History of the Republic of Egypt 17 September 1978. The accords led to the 26 March 1979, signing of the Egypt–Israel Peace Treaty, by which Egypt regained control of the Sinai in May 1982. Throughout this period, US–Egyptian relations steadily improved, and Egypt became one of America's largest recipients of foreign aid. Sadat's willingness to break ranks by making peace with Israel earned him the enmity of most other Arab states, however. In 1977, Egypt fought a short border war with Libya. Sadat used his immense popularity with the Egyptian people to try to push through vast economic reforms that ended the socialist controls of Nasserism.