The Sinai Crisis was an invasion of Egypt and the Gaza Strip in late 1956 by Israel, the United Kingom and France. The aims of the UK and France were to regain control of the Suez Canal which Egypt controlled since July 26, 1956, when it was seized by Egypt from the French-British Suez Canal Company.
In October of 1956 operation Kadesh began and involved all of the air force's combat capable aircraft including the Mosquitos. While they weren't used much in the first couple of days of the war they did take part in numerous missions striking the Egyptian forces. In all the Mosquitos took on 74 combat sorties during the conflict, including the longest range mission to strike in Sharm El-Sheikh at the southern tip of Sinai. Shortly after the conflict all of the remaining piston engined aircraft in the Israeli air force were acknowledged as obsolete and subsequently either scrapped or sold with all Mosquitos being removed from the Israeli Air Force inventory by 1958.