U.S. Army Pfc. Stephan Whelan, mortar gunner, left, and Spc. Steven Doherty, both assigned to Alpha Company, 3rd Battalion, 15th Infantry Regiment, operate a M224 60mm mortar launcher during a training scenario Oct. 12, 2015, in Arta, Djibouti. ACO operates using light infantry and various other force enablers to accomplish their mission. (U.S. Air Force photo by Senior Airman Peter Thompson/Released)
By Thompson, Peter A. SrA, Combined Joint Task Force - Horn of AfricaCamp Lemonnier, DjiboutiOct 23, 2015
