Malian troops, left, stand near the scene of an explosion, right, at the Joint Operational Mechanism base in Gao, Mali, Wednesday, Jan. 18, 2017. A suicide bomber in an explosives-laden vehicle attacked a camp in northern Mali on Wednesday, killing more than 50 people and wounding more than 100 soldiers and former fighters now trying to stabilize the region. (AP Photo/Yacouba Cisse)