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
Multinational Joint Task Force Multinational Joint Task Force The Multinational Joint Task Force (MNJTF) is a combined multinational formation, comprising units, mostly military, from Benin, Cameroon, Chad, Niger, and Nigeria. It is headquartered in N'Djamena and is mandated to bring an end to the Boko Haram insurgency. The task force was first organised as a solely Nigerian force in 1994, during the administration of Sani Abacha, to "checkmate banditry activities and to facilitate free movement" along its northern border. In 1998 it was expanded to include units from neighbouring Chad and Niger with the purpose of dealing with common cross-border security issues in the