US military and intelligence officials believe that the ISIS fighters that ambushed and killed four US troops in Niger last October fled back across the border into Mali and have remained there since, according to an administration official directly familiar with the latest assessment.
원문출처 : https://www.cnn.com/2018/02/26/politics/us-focusing-mali-niger-ambush-investigation/index.html
원문출처 : https://www.cnn.com/2018/02/26/politics/us-focusing-mali-niger-ambush-investigation/index.html