Suez Crisis

The Suez Crisis, also named the Tripartite Aggression and the Kadesh Operation, was an invasion of Egypt in late 1956 by Israel, followed by the United Kingdom and France. The aims were to regain Western control of the Suez Canal and to remove Egyptian President Gamal Abdel Nasser from power. After the fighting had started, the United States, the Soviet Union, and the United Nations forced the three invaders to withdraw. The episode humiliated Great Britain and France and strengthened Nasser.

On October 29, Israel invaded the Egyptian Sinai. Britain and France issued a joint ultimatum to cease fire, which was ignored. On November 5, Britain and France landed paratroopers along the Suez Canal. The Egyptian forces were defeated, but they did block the canal to all shipping. It became clear that the Israeli invasion and the subsequent Anglo-French attack had been planned beforehand by the three countries.

The three allies had attained a number of their military objectives, but the Canal was now useless and heavy pressure from the United States and the USSR forced them to withdraw. U.S. President Dwight D. Eisenhower had strongly warned Britain not to invade; he now threatened serious damage to the British financial system. Historians conclude the crisis "signified the end of Great Britain's role as one of the world's major powers". Peden in 2012 states, "The Suez crisis is widely believed to have contributed significantly to Britain's decline as a world power." 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.