Mauritanian Fusiler Marins rush through a doorway during

Mauritanian Fusiler Marins rush through a doorway during a room-clearing exercise with Marines from Special Marine Air-Ground Task Force Crisis Response-Africa near Rosso, Mauritania, Aug. 23, 2016. Marines worked on small unit tactics, detainee procedures, weapons handling and marksmanship techniques while training with the Mauritanian FUMA to aid in the suppression of illicit trafficking in the region. (U.S. Marine Corps courtesy photo/released)