In his latest blog, former US Ambassador to Nigeria and NSN member John Campbell asks whether Boko Haram is establishing territory in north-east Nigeria.

He notes that Boko Haram has taken over the town of Damboa, raising its flag and establishing checkpoints. Until now, Boko Haram has been more well known for its hit-and-run attacks rather than for seizing towns. Damboa could signal a new phase of the insurgency.

You can find the full blog here.