AMMO CARRY U.S. Army Pvt. John Underhill carries 155-mm artillery rounds to prepare for a mass fire mission during Operation Chosin, a training exercise, at the 7th Army Joint Multinational Training Command’s Grafenwoehr Training Area, Germany, Jan. 27, 2015. Underhill is assigned to Field Artillery Squadron, 2nd Cavalry Regiment. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 812068-X-MZL60-481.jpg Photo Gallery