Throughout history, large numbers of Sudanese have lived in Egypt for long periods of time, often going back and forth between Egypt and Sudan. Since the 1983 war in southern Sudan, followed by the 1989 coup, Egypt has become the preferred place of refuge for Sudanese. Before 1995, the Wadi El Nil agreement between Sudan and Egypt, gave Sudanese unrestricted access to education, health services, property ownership, and employment. However, with the assassination attempt on President Mubarak in Addis Abba in June 1995, allegedly performed by Sudanese Islamists, the Wadi El Nil agreement was abrogated, putting the rights of the Sudanese on par with any other foreigner.