It was not immediately clear how many troops were at the base at the time of the attack , which happened Saturday . Boko Haram has terrorized northern Nigeria regularly since 2009 . The group is blamed for a series of attacks on schools and churches in the past two years that have left more than 200 people dead.
Boko Haram has terrorized northern Nigeria regularly since 2009 . The group is blamed for a series of attacks on schools and churches in the past two years that have left more than 200 people dead.