Firing a Mortar Soldiers fire a 120 mm mortar as the round exits the tube in a flash of smoke during a live-fire at exercise on Joint Base Elmendorf-Richardson, Alaska, Jan. 12, 2016. U.S. Army photo by John Pennell SHARE: Download: Full Size (1.86 MB) Tags: mortar, photo essays, joint base elmendorf-richardson, alaska, all images Credit: John Pennell VIRIN: 160112-A-SO352-027.JPG Photo Gallery