1956: The Suez Crisis begins as Israeli forces invade the Sinai Peninsula and push Egyptian forces back toward the Suez Canal. Israel was responding to Egyptian President Gamal Abdel Nasser's decision to nationalize the canal. Israel was quickly assisted by British and French forces, which bombed Cairo in an attempt to regain Western control of the canal and remove Nasser from power. The United States, the Soviet Union and the United Nations would put pressure on Britain, France and Israel to pull out from Egypt, and Anglo-French forces withdrew before the end of the year, but Israeli forces remained until March 1957, prolonging the crisis. In April 1957, the canal was fully reopened to shipping.