Joint Defence and Economic Co-operation Treaty

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.

The Treaty created two of the principal institutions of the Arab League: Both councils report to the Council of the Arab League.
 * the Joint Defence Council
 * the Economic Council (renamed Economic and Social Council in 1980)