Days after Boko Haram sect blamed for deadly village raids.

Human rights monitors troubled by Jonathan administration's anti-terror push.

Includes former military ruler Muhammadu Buhari, considered a serious anti-corruption fighter.

Across northeastern region, schools are emptying, threatening radicalization, economic decline.

The leader of Boko Haram Islamist rebels has said in a video that the Nigerian military offensive is failing in its goal of crushing the four-year-old insurgency.

Gesture aims to win popular backing for offensive; Nigerian warplanes hitting militant camps in north.

Offensive aims to crush insurgents in strongholds; Boko Haram militants well armed, some in hiding.

Offensive meant to wrest back territory from increasingly well-armed Boko Haram insurgents.

The military offensive has divided opinion over how best to tackle the Islamist insurgent rebellion.