A great deal of NE Nigeria is heavily forested, and the canopy would be so thick as to prevent satellite tracking of these subhuman. Only way to defeat them is boots on the ground and massive fire power.
A few nukes could help.
Napalm it. There are plenty of refineries and lots of petroleum in Nigeria. Wouldn’t cost them a thing..
Arm their opponents, and make sure NOT one follower of the prophet enters the USA. Beyond that, I don’t care.