In May 2014 , in the wake of the Chibok schoolgirl kidnapping , presidents Paul Biya of Cameroon and Idriss Déby of Chad announced they are waging war on Boko Haram , and deployed troops to the Nigerian border . Boko Haram launched several attacks into Cameroon , killing 84 civilians in a December 2014 raid , but suffering a heavy defeat in a raid in January , 2015 . Cameroon declared victory over Boko Haram on Cameroonian territory in September 2018
December 2014 raid
December 2014 Cameroon clashes
Cameroon