In this photo taken on Monday, Oct. 28, 2013, police and soldiers stand in front of a burnt out army barracks following an attack by Boko Haram in in Damaturu, Nigeria. Nigerian military and hospital reports indicate a 5-hour-long battle between Islamic extremists and troops in the capital of Nigerias Yobe state last Thursday and Friday killed at least 90 militants, 23 soldiers and eight police officers. (AP Photo)