Musa Maina holds a picture of her kidnapped daughter, Hauwa, on April 12, 2019 in Chibok. - In February 2018, the group Boko Haram seized 110 schoolgirls from Dapchi, in an echo of the 2014 abduction of more than 200 from Chibok that brought world attention to the conflict. More than 27,000 people have been killed since the Boko Haram conflict began in 2009 and some 1.8 million others are still displaced. (Photo by Audu Ali MARTE / AFP)