COVER FIRE Spent shell casings pile up next to a Army combat engineer who is manning an M240-B machine gun during a live-fire exercise on Fort Bragg, N.C., July 21, 2011. Machine gunners provided covering fire while other engineers breached a wire obstacle nearby. The soldiers are assigned to the 82nd Airborne Division's 1st Brigade Combat Team. In spite of the 105-degree weather, the soldiers trained all day and into the night. SHARE IMAGE: Download Image: Full Size (0.09 MB) Photo By: VIRIN: 358674-D-HSG61-823.jpg Photo Gallery