FILE – In this Wednesday April 8, 2015 file photo, a woman walks past Nigerian soldiers at a checkpoint in Gwoza, Nigeria, a town...
FILE – In this Wednesday April 8, 2015 file photo, a woman walks past Nigerian soldiers at a checkpoint in Gwoza, Nigeria, a town newly liberated from Boko Haram. Nigerian troops have driven Boko Haram extremists out of an abandoned northeastern primary school in a shootout that killed four militants, the army said Monday, Nov. 2, 2015. (AP Photo/Lekan Oyekanmi, File)
