Nigeria's military was accused of ignoring repeated warnings about the movements of Boko Haram fighters before they kidnapped 110 schoolgirls in the country's restive northeast. The students -- the youngest of whom is aged just 10 -- were seized from the town of Dapchi, Yobe state, on February 19 in virtually identical circumstances to those in Chibok in 2014. Then, more than 200 schoolgirls were taken in an attack that brought sustained world attention on the Islamist insurgency and sparked a global campaign for their release.