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
History of Egypt under Anwar Sadat allowing it to publish a monthly magazine, al-Dawa, which appeared regularly until September 1981 (although he did not allow the group's reconstitution). In 1971, the concentration camps where Islamists were held were closed, and the regime began to gradually release the imprisoned Muslim Brothers, though the organisation itself remained illegal; the last of those still behind bars regained their freedom in the general amnesty of 1975. Sadat also considered Islamists, particularly al-Gama'a al-Islamiyya, a "useful counterweight" to his Marxist and Arab leftist opposition, student groups being particularly vocal and active. From 1973 to 1979 al-Gama'a al-Islamiyya grew (in part with