The Treaty of Lagos created the Economic Community of West African States (ECOWAS) in Lagos, Nigeria, on 28 May 1975. The treaty was created to promote economic trade, national cooperation, and monetary union, for growth and development throughout West Africa.
A revised treaty intended to accelerate integration of economic policy and improve political cooperation was signed on 24 July 1993. It sets out the goals of a common economic market, a single currency, the creation of a West African parliament, economic and social councils, and a court of justice. The treaty also lays the burden of settling regional conflicts on the treaty members.

