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
Frustration–aggression hypothesis unjustified condition participants. The authors concluded that unjustified frustration leads to greater level of aggression, compared to justified frustration, which, in turn, results in higher levels of aggression compared to the non-frustration situations. In 1964, Leonard Berkowitz stated that it is necessary to have an aggression stimulus to make aggression take place. Then in 1974 and 1993, he remodified the frustration/aggression hypothesis into a theory that removed the importance of aggressive cues to the aggressive behavior. Which is to say, extremely angry subject will show aggression even if the aggression cue is absent. The most provocative theory introduced by Berkowitz