Suez Crisis led to a withdrawal. U.S. President Dwight D. Eisenhower had strongly warned Britain not to invade; he threatened serious damage to the British financial system by selling the US government's pound sterling bonds. Historians conclude the crisis "signified the end of Great Britain's role as one of the world's major powers". The Suez Canal was closed from October 1956 until March 1957. Israel fulfilled some of its objectives, such as attaining freedom of navigation through the Straits of Tiran, which Egypt had blocked to Israeli shipping since 1950. As a result of the conflict, the United Nations created the UNEF
Suez Crisis instructed its activists not to emphasise their opposition to Suez because the government's action had considerable support. Callaghan believed that the Conservatives increased their majority at the 1959 election in part because working-class Labour voters were still angry at the party for opposing the conflict. Labour MP Stanley Evans resigned from his seat and his membership of the party due to his support for British action in Suez. The operation, aimed at taking control of the Suez Canal, Gaza, and parts of Sinai, was highly successful for the invaders from a military point of view, but was a disaster from