Nasserism is a left-wing political ideology that is based on the thinking of the Egyptian president and famed Arab nationalist Gamal Abdel Nasser. Nasser's views fused secular Arab nationalism, socialism, and Cold War non-alignment, and he was known for his strong anti-imperialist stance. In 1956, Nasser was behind the nationalization of the Suez Canal and the successful resistance to an invasion by the United Kingdom, France, and Israel, and he inspired Nasserist movements across the Arab World, notably in Lebanon and Yemen. After Egypt's defeat in the 1967 Six-Day War, Nasserism lost much of its support, and Nasser's successors Anwar Sadat and Hosni Mubarak betrayed Nasserism by adopting neoliberal economic stances, creating an authoritarian centrist state, and allying with the United States and Israel. Nevertheless, Nasserism endured as a significant political ideology in the region, influencing the powerful Independent Nasserist Movement during the Lebanese Civil War.