The history of Egypt under Anwar Sadat covers the eleven year period of Egyptian history from Anwar Sadat's election as President of Egypt on 15 October 1970, following the death of President Gamal Abdel Nasser, to Sadat's assassination by Islamist fundamentalist army officers on 6 October 1981. Though presenting himself as a Nasserist during his predecessor's lifetime, upon becoming President, Sadat broke with many of the core tenets of the domestic and foreign policy ideology that had defined Egyptian politics since the Egyptian Revolution of 1952. In addition to abandoning many of Nasser's economic and political principles via the Infitah policy, Sadat ended Egypt's strategic partnership with the Soviet Union in favour of a new strategic relationship with the United States, initiated the peace process with the State of Israel in exchange for the evacuation of all Israeli military forces and settlers from Egyptian territory, and instituted a form of politics in Egypt that, whilst far removed from Egypt's pre-revolution democratic system, allowed for some multi-party representation in Egyptian politics. Sadat's tenure also witnessed a rise in governmental corruption, and a widening of the gulf between rich and poor, both of which would become hallmarks of the presidency of his successor, Hosni Mubarak.