Sinai Peninsula and controlled by foreign empires, in more recent history the Ottoman Empire (1517–1867) and the United Kingdom (1882–1956). Israel invaded and occupied Sinai during the Suez Crisis (known in Egypt as the "Tripartite Aggression" due to the simultaneous coordinated attack by the UK, France and Israel) of 1956, and during the Six-Day War of 1967. On 6 October 1973, Egypt launched the Yom Kippur War to retake the peninsula, which was unsuccessful. In 1982, as a result of the Israel–Egypt Peace Treaty of 1979, Israel withdrew from all of the Sinai Peninsula except the contentious territory of Taba, which was
Suez Crisis blockaded the Gulf of Aqaba, in contravention of the Constantinople Convention of 1888. Many argued that this was also a violation of the 1949 Armistice Agreements. According to the Egyptian historian Abd al-Azim Ramadan, the events leading up to the nationalization of the Suez Canal Company, as well as other events during Nasser's rule, showed Nasser to be far from a rational, responsible leader. Ramadan notes Nasser's decision to nationalize the Suez Canal without political consultation as an example of his predilection for solitary decision-making. The nationalisation surprised Britain and its Commonwealth. There had been no discussion of the canal