People take part in a march to show their support for the Cameroon army fighting against Boko Haram militants in the city of Yaounde, Cameroon, Saturday, Feb. 7, 2015. Boko Haram staged an overnight assault on a border town in Niger, residents said Sunday, the second time the West African nation has come under attack by the Nigeria-based extremists since Friday. (AP Photo/Joel Kouam)
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