Geography of Chad lake has shrunk dramatically in the last four decades due to increased water usage from an expanding population and low rainfall. Bordered by Chad, Niger, Nigeria, and Cameroon, Lake Chad currently covers only 1350 square kilometers, down from 25,000 square kilometers in 1963. The Chari and Logone Rivers, both of which originate in the Central African Republic and flow northward, provide most of the surface water entering Lake Chad. Chad is also next to Niger. Located in north-central Africa, Chad stretches for about 1,800 kilometers from its northernmost point to its southern boundary. Except in the far northwest and south,
Cameroon–Nigeria relations of not doing enough to fight Boko Haram even though the terrorist group frequently crosses into Cameroonian territory. Cameroon has been attacked several times by Boko Haram. Border closures after attacks in Nigeria in 2012 to prevent further infiltration by Boko Haram had a negative impact on the Cameroonian economy. In May 2014, in the wake of the Chibok schoolgirl kidnapping, "[Cameroon's] defense minister Edgard Allain Mebe Ngo'o met with Chad's minister of national defense, Benaindo Tatola, in Yaounde. Ngo'o said Chad had also deployed troops to work together with Cameroonian forces on the borders with Nigeria. He also said