GREEN SCREEN U.S. troopers participate in a live-fire exercise on Grafenwoehr Training Area in Germany, March 5, 2015. The troopers, assigned to 1st Squadron, 2nd Cavalry Regiment, conducted group and tactical movements while attacking an objective. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 967261-C-CBW28-290.jpg Photo Gallery