After Britain and the US withdrew their financial pledges to help Egypt build the Aswan High Dam, Egyptian President Gamal Abdel Nasser nationalized the Suez Canal, angering Britain and France, which had direct financial stakes in the canal. A joint invasion of Egypt ensued, but UN intervention led to an armistice in November. The canal, blocked for months due to damage, reopened in 1957. What politician involved in the aftermath is considered the father of the modern concept of "peacekeeping"? Discuss (http://forum.thefreedictionary.com/postst69297_Suez-Canal-Crisis-Begins--1956-.aspx)