The conflict between military forces and non-state armed groups in the Lake Chad region broke out in northeast Nigeria in 2009. It has since spread into neighbouring Cameroon, Chad and Niger, creating one of the largest humanitarian crises in Africa.
Many of the displaced have found refuge in host communities, putting a huge strain on a region already suffering from poverty, food insecurity, recurrent disease outbreaks and weak health systems.
MSF teams have responded to the high humanitarian needs caused by the conflict in the region.