Transport in Chad the direction of Kousseri, Cameroon, near N'Djamena. Expansion of the road towards Cameroon through Pala and Léré is reportedly in the preparatory stages. Most rivers flow but intermittently. On the Chari, between N’Djamena and Lake Chad, transportation is possible all year round. In September and October, the Logone is navigable between N’Djamena and Moundou, and the Chari between N’Djamena and Sarh. Total waterways cover 4,800 km (3,000 mi), of which 2,000 km (1,250 mi) are navigable all year. Chari and Logone Rivers are navigable only in wet season (2002). Both flow northwards, from the south of Chad, into Lake Chad.
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