Niger–Nigeria relations on the waters of the Niger River and Lake Chad. Both areas face rapid desertification and increasing demands for water. The two nations are members of the Niger Basin Authority (successor to the 1964 Niger River Commission), the Lake Chad Commission, and the "Niger-Nigeria Joint Committee" has special focus on water and water development issues. The two nations are signatories of The Enugu Agreement (3 December 1977) on common regulations for fauna and flora among the member states of the Lake Chad Basin Commission (Cameroon, Niger, Nigeria and Chad). On 15 January 1990 the two nations signed "The Abuja Agreement"
Rail transport in Chad Imperial expansionist policy known as Mittelafrika. In the 1950s a line through Chad from Port Sudan to Nigeria was proposed but opposed by Chad governmental organisations. In 1958 plans for a line from Cameroon the "Société Civile d'Études du Chemin de Fer Douala-Tchad" (SEDOT) was formed, and continued planning led to start of construction in 1964 - the line was constructed as far as Ngaoundéré in Cameroon (the Trans-Cameroon Railway, completed 1975.). Initial plans were for an extension to Moundou in Chad, but this was not completed. In 1959 a multinational agency, the "Agence Transéquatoriale des Communications" (ATEC) was formed