The Organisation of Islamic Cooperation (OIC; Arabic: منظمة التعاون الإسلامي; French: Organisation de la Coopération Islamique, OCI) is an international organisation consisting of 57 member states. The organisation states that it is "the collective voice of the Muslim world" and works to "safeguard and protect the interests of the Muslim world in the spirit of promoting international peace and harmony".
The OIC has a permanent delegation to the United Nations, and is the largest international organisation outside the United Nations. The official languages of the OIC are Arabic, English and French.
Since the 19th century, some Muslims had aspired to ummah to serve their common political, economic, and social interests. The collapse of the Ottoman Empire and the Caliphate after World War I left a vacuum for a pan-Islamic institution. Losing the Six-Day War in 1967 provided the incentive needed. Leaders of Muslim nations met in Rabat to establish the OIC on 25 September 1969.
According to its charter, the OIC aims to preserve Islamic social and economic values; promote solidarity amongst member states; increase cooperation in social, economic, cultural, scientific, and political areas; uphold international peace and security; and advance education, particularly in the fields of science and technology.
The flag of the OIC (shown above) contains three main elements that reflect its vision and mission as incorporated in its new Charter. These elements are: the Ka’bah, the Globe, and the Crescent.