Lake Chad Chad Game Reserve, which covers half of the area next to the lake that belongs to Nigeria. The whole lake has been declared a Ramsar site of international importance. Speaking at the United Nations 73rd General Assembly, the President of Nigeria urged the international community to assist in combatting the root causes of conflict surrounding the Lake Chad Endorheic basin. Recent violence in the region has been attributed to competition between farmers and herders seeking irrigation for crops and watering of herds respectively. Plans to divert the Ubangi River into Lake Chad were proposed in 1929 by Herman Sörgel in
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