Chad Basin British and French concluded an agreement to clarify the boundary between French West Africa and what would become Nigeria. A boundary was agreed along a line from Say on the Niger to Barruwa on Lake Chad, but leaving the Sokoto Caliphate in the British sphere. Parfait-Louis Monteil was given charge of an expedition to discover where this line actually ran. On 9 April 1892 he reached Kukawa on the shore of the lake. Over the next twenty years a large part of the Chad Basin was incorporated by treaty or by force into French West Africa. On 2 June 1909
Niger Armed Forces the African Union, Niger defense forces have been involved in multiple missions in the Africa and the West Africa. Niger has been a supporter and volunteered to participate in the African Union future rapid intervention forces. In addition, with the growing threat of Boko Haram, defense forces of Niger, Nigeria, Cameroon and Chad have intensified cooperation to address the trans-border threat of this organization. U.S. and France defense cooperation with Niger has intensified post 9/11 as part of the Global War on Terror. The Niger defense forces along with forces from Chad, Mali, Mauritania have become major partners of France