Sadat era refers to the presidency of Anwar Sadat, the eleven-year period of Egyptian history spanning from the death of president Gamal Abdel Nasser in 1970, through Sadat's assassination by fundamentalist army officers on 6 October 1981. Sadat's presidency saw many changes in Egypt's direction, reversing some of the economic and political principles of Nasserism by breaking with Soviet Union to make Egypt an ally of the United States, initiated the peace process with Israel, re-instituting the multi-party system, and abandoning socialism by launching the Infitah economic policy.