MINE THE TRAINING Soldiers from Alpha Troop, Regimental Engineer Squadron, 2nd Cavalry Regiment load dummy rounds onto an M139 Volcano mine system during Saber Junction 15, an exercise held in April 2015 at the U.S. Army’s Joint Multinational Readiness Center in Hohenfels, Germany. Systems like the Volcano require periodic attention to ensure that they do not become obsolete. (U.S. Army photo by SPC John Cress Jr.)