U.S. Army Capt. David Erck, left, points out the sequence of events of the combined arms live-fire exercise on a sand table before the start of the exercise at Tactical Base Gamberi in Laghman province, Afghanistan, May 13, 2015. Erck is an explosive ordnance disposal officer assigned to Train Advise Assist Command East. U.S. Army Capt. David Erck, left, points out the sequence of events of the combined arms live-fire exercise on a sand table before the start of the exercise at Tactical Base Gamberi in Laghman province, Afghanistan, May 13, 2015. Erck is an explosive ordnance disposal officer assigned to Train Advise Assist Command East. SHARE: Download: Full Size (1.82 MB) Tags: Photo Essays Credit: VIRIN: 256859-P-NDY49-746.jpg Photo Gallery