Hosni Mubarak antagonize Mubarak because he was Sadat's personal choice. Though supportive of Sadat's earlier efforts made to bring the Sinai Peninsula back into Egyptian control, Mubarak agreed with the views of various Arab figureheads and opposed the Camp David Accords for failing to address other issues relating to the Arab–Israeli conflict. Sadat even transferred his decisionmaking authority to Mubarak temporarily at times he went on vacations. Mubarak was injured during the assassination of President Sadat in October 1981 by soldiers led by Lieutenant Khalid Islambouli. Following Sadat's death, Mubarak became the fourth president of Egypt. Until Libya's suspension from the Arab
Muslim Brotherhood in Egypt more radical Qutb-inspired Islamist groups blossomed, and after Sadat signed a peace agreement with Israel in 1979, the Muslim Brotherhood became confirmed enemies of Sadat. Sadat was assassinated by a violent Islamist group Tanzim al-Jihad on 6 October 1981, shortly after he had Brotherhood leaders (and many other opposition leaders) arrested. Again with a new president, (Hosni Mubarak), Brotherhood leaders (Supreme Guide Umar al-Tilmisani and others) were released from prison. Mubarak cracked down hard against radical Islamists but offered an "olive branch" to the more moderate Brethren. The brethren reciprocated, going so far as to endorse Mubarak's candidacy for president