LIVE-FIRE EXERCISE U.S. troopers load an M777 howitzer during a live-fire exercise at the 7th Army Joint Multinational Training Command’s Grafenwoehr Training Area, Germany, Jan. 23, 2015. The troops are assigned to Field Artillery Squadron, 2nd Cavalry Regiment. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 904543-O-HCR77-145.jpg Photo Gallery