DUET CHUTES U.S. paratroopers conduct a training jump from a CH-47 Chinook helicopter into Bunker Drop Zone at the 7th Army Joint Multinational Training Command's Grafenwoehr Training Area in Grafenwoehr, Germany, Nov. 12, 2013. The paratroopers are assigned to the 173rd Infantry Brigade Combat Team. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 229633-Y-XJL69-996.jpg Photo Gallery