Soldiers fire an M199 105 mm howitzer during a demonstration as part of the Arctic Thunder Open House on Joint Base Elmendorf-Richardson, Alaska, July 25, 2014. Soldiers fire an M199 105 mm howitzer during a demonstration as part of the Arctic Thunder Open House on Joint Base Elmendorf-Richardson, Alaska, July 25, 2014. SHARE: Download: Full Size (1.91 MB) Tags: Photo Essays Credit: VIRIN: 269397-I-HKL85-080.jpg Photo Gallery