Soldiers fire an M777 howitzer during Dynamic Front 18 at the Grafenwoehr Training Area, Germany, March 8, 2018. The soldiers are assigned to Field Artillery Regiment, 2nd Cavalry Regiment. The exercise, which includes about 3,700 participants from 26 nations, focuses on the interoperability of U.S. Army, joint service and allied nation artillery in a multinational environment. Army photo by Gertrud Zach