The Treaty of Joint Defence and Economic Co-operation of the League of Arab States (commonly, the Joint Defence and Economic Co-operation Treaty) is a treaty among the member states of the Arab League signed on 18 June 1950 in Cairo, Egypt.[1]
Osmańczyk, Edmund Jan (2003). "League of Arab States Treaty of Joint Defense and Economic Cooperation, 1950". In Mango, Anthony (ed.). Encyclopedia of the United Nations and international agreements. Vol. 2 (3 ed.). New York: Routledge.