The Sinai War was a brief one (Oct/29/1956 to Nov/5/1956) in which Israel, France and England attacked Nasser’s Egypt, after a series of severe aggressions by the Egyptian leader. On Jul/26/1956, Gamal Abdel Nasser decided to nationalize the company that managed the maritime pass through the Suez Canal. This company belonged to French and English investors. Although Great Britain had been affected by Nasser, it was less interested than France to begin a war against Egypt. France wanted to stop Nasser, a strategic partner of the Algerian rebels. Great Britain had a military defense alliance with Jordan, a country that wanted to join Nasser in the war. On the other hand, Great Britain also wanted to weaken Nasser, who was leading a Pan-Arab nationalism that was threatening its position in Jordan and Iraq. That is how France and England became involved in the war. From October 22 to 24 of 1956, the French convened Great Britain and Israel to a secret meeting to coordinate a military operation against Egypt. It was agreed that France would defend, from Israeli bases, against an Egyptian air raid. Israel would attack the Suez Canal and would immediately accept a French and British ultimatum to withdraw 20 km from the Canal in exchange for the freedom of circulation through the maritime passage. Supposedly, Egypt would reject the ultimatum, so the powers would attack the Egyptian airplanes on land. The European forces entered lightly in the combat. A Soviet ultimatum, supported with a passive position by the United States (who were not informed of the attack), decreed the retreat of the allied forces from Sinai. Israel achieved a military victory, though it was partially defeated in the diplomatic field. In exchange for its military retreat, Israel demanded the opening of the Straits of Tiran and the participation of the UN Blue Helmets in the Sinai region.