FORT CARSON, Colo. – A fireball engulfs a mortar round, March 19, 2014, during a mortar live-fire exercise. Soldiers of the 4th Squadron, 10th Cavalry Regiment, 3rd Armored Brigade Combat Team, 4th Infantry Division, conducted mortar training as part of gunnery training and certifications executed by units across 3rd ABCT. (U.S. Army photo by Staff Sgt. Grady Jones, 3rd ABCT Public Affairs, 4th Inf. Div.)