It is a charter member of the African Union and the West African Monetary Union and also belongs to the Niger Basin Authority and Lake Chad Basin Commission, the Economic Community of West African States, the Non-Aligned Movement, the Organisation of Islamic Cooperation and the Organization for the Harmonization of Business Law in Africa (OHADA). The westernmost regions of Niger are joined with contiguous regions of Mali and Burkina Faso under the Liptako-Gourma Authority.