Anwar Sadat of Nasserism, re-instituting a multi-party system, and launching the Infitah economic policy. As President, he led Egypt in the Yom Kippur War of 1973 to regain Egypt's Sinai Peninsula, which Israel had occupied since the Six-Day War of 1967, making him a hero in Egypt and, for a time, the wider Arab World. Afterwards, he engaged in negotiations with Israel, culminating in the Egypt–Israel Peace Treaty; this won him and Israeli Prime Minister Menachem Begin the Nobel Peace Prize, making Sadat the first Muslim Nobel laureate. Although reaction to the treaty—which resulted in the return of Sinai to Egypt—was generally
President of Egypt Prime Minister in the process of presidential succession, when the former post of Vice President still existed it was a tradition for the People's Assembly to nominate the vice-president for the vacant office of the president. Both Sadat and Mubarak served as vice-presidents at the time the presidential office became vacant, however on Mubarak's succession in 1981 as president he did not appoint a vice-president until 29 January 2011 when during substantial protests demanding reforms he appointed Omar Suleiman to the role. President Gamal Abdel Nasser submitted his resignation after the overwhelming Egyptian defeat in 1967 war with Israel, before