Soldiers from the French 68th African Artillery Regiment fire 120mm mortars during Exercise Dynamic Front 18 at Grafenwoehr Training Area, Germany. Dynamic Front is an annual U.S. Army Europe (USAREUR) exercise focused on the interoperability of U.S. Army, joint service and allied nation artillery and fire support in a multinational environment, from theater-level headquarters identifying targets to gun crews pulling lanyards in the field.