In the immediate aftermath of trilateral invasion on 23 November 1956 by Britain, France, and Israel (known as the Suez Crisis), a proclamation was issued stating that 'all Jews are Zionists and enemies of the state', and it promised that they would be soon expelled. Some 25,000 Jews, almost half of the Jewish community left for Israel, Europe, the United States, and South America, after being forced to sign declarations that they were leaving voluntarily, and agreed with the confiscation of their assets. Some 1,000 more Jews were imprisoned. Similar measures were enacted against British and French nationals in retaliation for the invasion. In Joel Beinin's summary: "Between 1919 and 1956, the entire Egyptian Jewish community, like the Cicurel firm, was transformed from a national asset into a fifth column." After 1956, prominent families, like the Qattawis, were left with only a fraction of the social clout they had once enjoyed, if they could remain in Egypt at all. Ironically Jews like Rene Qattawi were in full support of establishing an Arab-Egyptian nationalism, and were opposed to the rise of Zionism and the establishment of the State of Israel. Nonetheless, even this social elite of the Jewish population was not believed to have any place in the new Egyptian regime.