Lake Chad Basin Commission Basin (not all of which feeds Lake Chad) includes eight countries, which, in descending area of land, included are: Chad, Niger, the Central African Republic, Nigeria, Sudan, Algeria, and Libya. Cameroon, Niger, Nigeria and Chad (the four countries directly containing parts of Lake Chad and its wetlands) signed the Fort Lamy (today N'Djamena) Convention on May 22, 1964, which created the Lake Chad Basin Commission. The Central African Republic joined in 1996, and Libya joined in 2008. Sudan was admitted in July 2000, but has observer status because it has not ratified the founding convention. Algeria has not participated. The
Colony of Niger Tibesti Cercle ceded to Chad Colony in French Equatorial Africa, and in 1932, the colony of French Upper Volta was divided amongst its neighbors, with the Cercles of Dori and Fada N'gourma ceded to Niger Colony. Niger Colony officials, unlike neighboring Chad, remained loyal to the French Vichy government after 1940, and thus closed its southern border (to Nigeria) and eastern border until 1944. On 31 December 1946 the Military Territories of N'Guigmi and Agadez were ceded to Niger Colony, leaving only Bilma Cercle as the last military-run section of modern Niger. This area in the far north east only