Al Jazeera, 23 Feb., 2014

Nigeria has closed its northern border with Cameroon to block the movement of Boko Haram members who use the area as a launch-pad for attacks.

In a statement released on Sunday the Nigerian military claimed fighters have set up bases in sparsely populated areas of its northeastern neighbours Cameroon, Chad and Niger; and use them to flee across the border after staging attacks to avoid military pursuit [....]

The closure comes as suspected Boko Haram fighters stormed the mostly Christian village of Izghe in Borno state on Saturday, north of Adamawa, killing more than 100 people.

“What I did was completely seal off the borders, no going in, no going out,” Brigadier General Rogers Iben Nicholas, the top military commander in Adamawa told the AFP news agency [....]

Also see:

Boko Haram 'stronger than Nigerian army'
Al Jazeera, 17 Feb., 2013
Rebels are better armed that government forces, says governor of region where 100 people were killed in a recent attack.