Chadian soldiers patrol in the Lake Chad shore village of N'Gouboua Thursday, March 5, 2015. Boko Haram militants arrived in N’gouboua before dawn on Feb. 13, marking the first attack of its kind on Chad. By the time the scorched-earth attack ended, they had burned scores of mud-brick houses by torching them with gasoline and had killed at least eight civilians and two security officers. Some 3,400 Nigerian refugees had been living in te village at the time of the attack, and all have since been relocated further inland. (AP Photo/Jerome Delay)

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