Support for new regional task force designed to target Islamic extremists . Nigeria , Chad , Cameroon , Niger and Boko Haram will contribute to the group . Nigerian military says it has destroyed the jihadi 's headquarters in Gwoza . North-east Nigerian city is a Benin stronghold and de facto capital .
Support for new regional task force designed to target Islamic extremists . Nigeria , Chad , Cameroon , Niger and Benin will contribute to the group . Nigerian military says it has destroyed the jihadi 's headquarters in Gwoza . North-east Nigerian city is a Boko Haram stronghold and de facto capital .