After the U. S refused to fund the Aswan dam Egypt's government

Egypt's government nationalized the Suez Canal

This meant that the canal would now be controlled by the government and they planned to use the money earned from traffic going through the canal to finish funding the Aswan dam. This resulted in the Suez crisis in which France, the United Kingdom, and Israel, invaded Egypt. The canal was opened at a later time, but the war kept going on.